M9767O Omnidirectional Foil Electret

INDEX
.Earphone Speaker
p1
6
.Micro Speaker
p7
34
.Receiver
i. Dynamic speaker and receiver
ii. Dynamic receiver
p35 37
p38 39
.Electret Condenser Microphone
i. SMD Type
ii. Digital Signal Output Type
iii. Microphone Holder
p40 50
p51
p52
p53-55
.Piezoelectric Type
i. Piezoelectric ceramic
ii. Piezo speaker
iii. Piezo buzzer
iv. Piezo sounder –external drive
v. Piezo sounder –self-drive
p56
p58
p61
p72
p82
.Magnetic Type
i. Magnetic buzzer
ii. Magnetic transducer
p86 93
p94 110
57
60
71
81
85
.Microphone Kit
p111
.Stere o E a r p h o n e
p112
.Technology
i. Construction of magnetic buzzer
ii. Construction of magnetic transducer
iii. The technology and operation of Piezo sounder
iv. Recommend circuit for Piezo sounder
p113
p114
p115 117
p118
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Introduction
ДArio wins trust through QualityД
Ariose Electronics Co., Ltd. established in 1996
was well experienced in the electronic acoustic this
field. Our main products are: buzzer, dynamic speaker,
piezoelectric ceramic speaker, electret condenser
microphone, stereo headphone set for multimedia,
earphone set for communication and handsfree
application, these products are applied to PDA, GPS,
MP3, PMP, DSC, mobile phone, e-book, wireless
transmission devices (Bluetooth, WiFi, WiMAX, and
so on), electronic instrument, medical instrument,
automatic control device and home appliances, automotive warning device, etc.
Our R&D and communication center is located in Taoyuan City, Taiwan, production line is in China.
Besides the professional technology and outstanding R&D team, we also concentrate on introducing
the newest measuring instrument, production technology and device to increase our
competitiveness.
ψStable quality, reasonable price, satisfactory service, abundant technical supportωis what we insist
on. We also got ISO 9001:2000 approval . Through professional production and rigorous quality
control, we provide the stable products and win trust from our customers.
In accordance with the instructions of ψWaste Electrical and Electronic EquipmentΤWEEEωand
ψRestriction of Hazardous SubstanceΙRoHSωfrom EU, we have provided these products to meet
RoHS specification. We are continuing to develop and design environment-protective products to
improve the quality of old and new products. On the other hand we upgrade our management and
key point of technology to follow the trend of international environment.
Because the technology of material, production and equipment are improving, Piezoelectric ceramic
take up a big share in this field of electronic material. Thin film Multi layer piezoelectric can be
used in many fields, it is the most important development item from us. Now we develop this
product Thin film Multilayer Piezoelectric Ceramic speaker including driver. It is light, thin,
power-saving, with great sound and no magnet is interference. It can be used on electronic device,
voice device of automobile and medical instrument and so on.
Under the diversified development of world trend, Ariose will continue to expand electronic
acoustic and insist to provide the best products and satisfactory service to our customers.
Micro speaker
Description of Part No. of Micro Speaker
LF
-
K
16
35
B
60
A
-
A
LF ：Compliant with RoHS requirement.
：Not Compliant with RoHS requirement.
K：Micro speaker for voice speech and multimedia.
H：Micro speaker for head phone.
Diameter（mm）：for round type；and the length of square type, rectangular
speaker and the speaker with enclosure.
Dimension（mm）
：the width are only for square, rectangular speaker and the
speaker with enclosure.
Impedance（ohm）
◆ A：4
◆ B：8
◆ C：16
◆ D：32
◆ E：64
◆
◆
◆
◆
◆
F：100
G：50
H：150
I：180
J：300
Height（mm）（i.e.：3.0mm will be indicated as 30；2.5mm will be 25）.
To stand for the difference of the shape for the same specs of
by A～Z.
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Earphone Speaker
Part No.
ࠠ
ဦ
Nominal Impedance
ᚐ‫לߔۓ‬
Resonant frequencyȐFoȑ
ᒋਁᓎ౗
Effective Freq. Range
ᓎៜጄൎ
Sound Pressure LevelȐdBȑ
ᒡрॣᓸ
Input Power ȐNom. / Max.ȑ
ё‫ڙ܍‬ᒡΕф౗Ȑᚐ‫ۓ‬/നεȑ
Distortion
ᒋ‫ݢ‬Ѩ੿౗
Operating Temp range
πբྕࡋ
LF-H09D42A
LF-H09D48A
LF-H10D37A
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LF-H09D42A
LF-H09D48A
LF-H10D37A
32Ω±15и
32Ω±15и
32Ω±15и
-
-
1120Hz±20и
FoД3.4KHz
FoД3.4KHz
FoД20KHz
106±5dB
104̈́3dB
123̈́3dB
1mW / 2mW
5mW / 10mW
8mW / 0.06W
5иmax. at 1KHz
5иmax. at 1KHz
5иmax. at 1KHz
-20кД+60к
-20кД+60к
-25кД+60к
Earphone Speaker
Part No.
ࠠ
ဦ
Nominal Impedance
ᚐ‫לߔۓ‬
Resonant frequencyȐFoȑ
ᒋਁᓎ౗
Effective Freq. Range
ᓎៜጄൎ
Sound Pressure LevelȐdBȑ
ᒡрॣᓸ
Input Power ȐNom. / Max.ȑ
ё‫ڙ܍‬ᒡΕф౗Ȑᚐ‫ۓ‬/നεȑ
Distortion
ᒋ‫ݢ‬Ѩ੿౗
Operating Temp range
πբྕࡋ
LF-K10D40A
LF-H11C56A
LF-H13D53A
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LF-K10D40A
LF-H11C56A
LF-H13D53A
32Ω±15и
16Ω±15и
32Ω±15и
1000Hz²15ʘ
740Hz²20ʘ
280Hz±20и
FoД20KHz
FoД20KHz
FoД20KHz
120±3dB
110̈́3dB
108̈́3dB
5mW / 10mW
1mW / 2mW
1mW / 2mW
5иmax. at 1.5KHz
5иmax. at 2KHz
5иmax. at 1.5KHz
-25кД+50к
-20кД+60к
-25кД+50к
Earphone Speaker
Part No.
ࠠ
ဦ
Nominal Impedance
ᚐ‫לߔۓ‬
Resonant frequencyȐFoȑ
ᒋਁᓎ౗
Effective Freq. Range
ᓎៜጄൎ
Sound Pressure LevelȐdBȑ
ᒡрॣᓸ
Input Power ȐNom. / Max.ȑ
ё‫ڙ܍‬ᒡΕф౗Ȑᚐ‫ۓ‬/നεȑ
Distortion
ᒋ‫ݢ‬Ѩ੿౗
Operating Temp range
πբྕࡋ
LF-H13E45A-A
LF-H15D63A
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LF-H13E45A-A
LF-H15D63A
64Ω±15и
32Ω±15и
620Hz²20ʘ
380Hz²20ʘ
100Д5KHz
FoД20KHz
132̈́3dB
128̈́3dB
0.01W / 0.015W
1mW / 2mW
5иmax. at 1KHz
5иmax. at 2KHz
-25кД+55к
-20кД+60к
Earphone Speaker
Part No.
ࠠ
ဦ
Nominal Impedance
ᚐ‫לߔۓ‬
Resonant frequencyȐFoȑ
ᒋਁᓎ౗
Effective Freq. Range
ᓎៜጄൎ
Sound Pressure LevelȐdBȑ
ᒡрॣᓸ
Input Power ȐNom. / Max.ȑ
ё‫ڙ܍‬ᒡΕф౗Ȑᚐ‫ۓ‬/നεȑ
Distortion
ᒋ‫ݢ‬Ѩ੿౗
Operating Temp range
πբྕࡋ
LF-H16D59A
LF-H20D32A
LF-H26D40A
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LF-H16D59A
LF-H20D32A
LF-H26D40A
32Ω±15и
32Ω±15и
32Ω±15и
300Hz²20ʘ
520Hz²20ʘ
235Hz±20и
FoД20KHz
FoД20KHz
FoД20KHz
125±3dB
127̈́3dB
132̈́3dB
1mW / 2mW
0.01W / 0.03W
0.01W / 0.03W
5иmax. at 2KHz
5иmax. at 2KHz
5иmax. at 2KHz
-20кД+60к
-20кД+60к
-20кД+60к
Earphone Speaker
Part No.
ࠠ
ဦ
Nominal Impedance
ᚐ‫לߔۓ‬
Resonant frequencyȐFoȑ
ᒋਁᓎ౗
Effective Freq. Range
ᓎៜጄൎ
Sound Pressure LevelȐdBȑ
ᒡрॣᓸ
Input Power ȐNom. / Max.ȑ
ё‫ڙ܍‬ᒡΕф౗Ȑᚐ‫ۓ‬/നεȑ
Distortion
ᒋ‫ݢ‬Ѩ੿౗
Operating Temp range
πբྕࡋ
LF-H28D40A
LF-H30D55A
LF-H40D76A
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LF-H28D40A
LF-H30D55A
LF-H40D76A
32Ω±15и
32Ω±15и
32Ω±15и
200Hz²20ʘ
155Hz²20ʘ
90Hz±20и
FoД20KHz
FoД20KHz
FoД20KHz
129±3dB
133̈́3dB
128̈́3dB
0.01W / 0.03W
0.03W / 0.04W
0.01W / 0.02W
10иmax. at 1KHz
10иmax. at 1KHz
5иmax. at 1KHz
-20кД+60к
-25кД+60к
-20кД+60к
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K10B28A
LF-K13B28A
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LF-K10B28A
LF-K13B28A
8Ω±15％
8Ω±15％
1100Hz±15％
1080Hz±20％
Fo～20KHz
Fo～3.5KHz
85±3dB / 10cm
85±3dB /10cm
0.4W / 0.8W
0.5W / 0.6W
10％max. at 1KHz
5％max. at 2KHz
-20℃～+70℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K13B32A
LF-K15B32A
LF-K15B34F
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LF-K13B32A
LF-K15B32A
LF-K15B34F
8Ω±15％
8Ω±15％
8Ω±15％
860Hz±20％
800Hz±20％
950Hz±20％
Fo～20KHz
Fo～20KHz
Fo～20KHz
80±3dB / 10cm
90±3dB /10cm
85±3dB /10cm
0.2W / 0.25W
0.5W / 0.7W
0.5W / 0.7W
10％max. at 1KHz
5％max. at 2KHz
5％max. at 1KHz
-25℃～+60℃
-25℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K15B34H
LF-K15B39A
LF-K16B25A
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LF-K15B34H
LF-K15B39A
LF-K16B25A
8Ω±15％
8Ω±15％
8Ω±15％
950Hz±20％
1000Hz±20％
1180Hz±20％
Fo～20KHz
Fo～20KHz
Fo～20KHz
94±3dB /10cm
93±3dB /10cm
83±3dB /10cm
0.5W / 1.0W
0.75W / 1.0W
0.3W / 0.5W
5％max. at 2KHz
5％max. at 1KHz
10％max. at 1KHz
-20℃～+60℃
-25℃～+60℃
-25℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K16B37A
LF-K17B40B
LF-K17C39A
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LF-K16B37A
LF-K17B40B
LF-K17C39A
8Ω±15％
8Ω±15％
16Ω±15％
990Hz±20％
700Hz±20％
850Hz±20％
Fo～20KHz
Fo～20KHz
Fo～20KHz
87±3dB / 10cm
90±3dB /10cm
90±3dB /10cm
0.5W / 0.7W
0.4W / 0.6W
0.5W / 0.8W
5％max. at 2KHz
5％max. at 1KHz
10％max. at 1KHz
-20℃～+60℃
-25℃～+60℃
-20℃～+70℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K20B31B-WA
LF-K20B35A
LF-K20B35C
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LF-K20B31B-WA
LF-K20B35A
LF-K20B35C
8Ω±15％
8Ω±15％
8Ω±15％
700Hz±20％
600Hz±20％
750Hz±20％
Fo～5.5KHz
Fo～20KHz
Fo～20KHz
93±3dB / 10cm
86±3dB /10cm
90±3dB /10cm
0.5W / 0.8W
0.3W / 0.5W
0.5W / 1.0W
10％max. at 1KHz
5％max. at 1.5KHz
5％max. at 1.5KHz
-20℃～+60℃
-25℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K20B41A
LF-K23B50A
LF-K23D37A
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LF-K20B41A
LF-K23B50A
LF-K23D37A
8Ω±15％
8Ω±15％
32Ω±15％
1004Hz±20％
600Hz±20％
790Hz±20％
Fo～20KHz
Fo～20KHz
Fo～20KHz
95±3dB /10cm
90±3dB /10cm
94±3dB /10cm
1.0W / 1.2W
0.3W / 0.5W
0.1W / 0.2W
5％max. at 2KHz
10％max. at 1KHz
10％max. at 2KHz
-20℃～+60℃
-20℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K26B44A
LF-K28A52A
LF-K28B30A
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LF-K26B44A
LF-K28A52A
LF-K28B30A
8Ω±15％
4Ω±15％
8Ω±15％
500Hz±20％
510Hz±20％
375Hz±20％
Fo～20KHz
Fo～20KHz
Fo～20KHz
93±3dB /10cm
95±3dB /10cm
86±3dB /10cm
0.5W / 1.0W
2.0W / 3.0W
0.25W / 0.5W
10％max. at 1KHz
5％max. at 1KHz
10％max. at 1KHz
-20℃～+60℃
-25℃～+50℃
-25℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K28B40A
LF-K28B40B
LF-K28B42A
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LF-K28B40A
LF-K28B40B
LF-K28B42A
8Ω±15％
8Ω±15％
8Ω±15％
540Hz±20％
940Hz±20％
550Hz±20％
Fo～20KHz
Fo～20KHz
Fo～17KHz
90±3dB /10cm
95±3dB /10cm
100±3dB /10cm
2.0W / 2.5W
0.5W / 1.0W
1.5W / 2.0W
10％max. at 1KHz
5％max. at 2KHz
10％max. at 1KHz
-25℃～+60℃
-25℃～+60℃
-25℃～+85℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K28B45A
LF-K30B51A
LF-K36A12A
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LF-K28B45A
LF-K30B51A
LF-K36A12A
8Ω±15％
8Ω±15％
4Ω±15％
400Hz±20％
370Hz±20％
330Hz±20％
Fo～20KHz
Fo～20KHz
Fo～20KHz
93±3dB /10cm
95±3dB /10cm
86±3dB /50cm
0.5W / 1.0W
1.0W / 1.5W
4.0W / 6.0W
10％max. at 2KHz
5％max. at 1KHz
5％max. at 1KHz
-25℃～+60℃
-25℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K36B40A
LF-K36B46B
LF-K36B46C
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LF-K36B40A
LF-K36B46B
LF-K36B46C
8Ω±15％
8Ω±15％
8Ω±15％
510Hz±20％
500Hz±20％
500Hz±20％
Fo～20KHz
Fo～4.5KHz
Fo～20KHz
100±3dB /10cm
88±3dB /50cm
88±3dB /50cm
0.5W / 1.0W
1.0W / 1.5W
1.0W / 1.5W
5％max. at 1KHz
5％max. at 1KHz
5％max. at 1KHz
-20℃～+60℃
-20℃～+60℃
-20℃～+85℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K36C41B
LF-K36F48A
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LF-K36C41B
LF-K36F48A
16Ω±15％
100Ω±15％
530Hz±20％
540Hz±20％
Fo～20KHz
Fo～20KHz
86±3dB /50cm
98±3dB /10cm
0.5W / 1.0W
0.8W / 1.0W
5％max. at 1KHz
5％max. at 1KHz
-20℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K40B10A
LF-K40B47A
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LF-K40B10A
LF-K40B47A
8Ω±15％
8Ω±15％
440Hz±20％
580Hz±20％
Fo～5KHz
Fo～7KHz
99±3dB /10cm
84±3dB /10cm
3.0W / 4.0W
0.15W /0.2W
5％max. at 1KHz
8％max. at 1KHz
-20℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K40B65A
LF-K40B65B
LF-K45B62A
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LF-K40B65A
LF-K40B65B
LF-K45B62A
8Ω±15％
8Ω±15％
8Ω±15％
450Hz±20％
310Hz±20％
520Hz±20％
Fo～20KHz
Fo～20KHz
Fo～4KHz
83±3dB /50cm
87±3dB /50cm
88±3dB /10cm
0.5W / 1.0W
1.5W /2.0W
0.5W / 1.2W
5％max. at 1KHz
5％max. at 1KHz
5％max. at 1KHz
-20℃～+60℃
-20℃～+85℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K50A95A
LF-K50B18C
LF-K50B21A
Win Trust Through Quality
LF-K50A95A
LF-K50B18C
LF-K50B21A
4Ω±15％
8Ω±15％
8Ω±15％
430Hz±20％
190Hz±20％
170Hz±20％
Fo ～5.2KHz
Fo ～20KHz
Fo ～20KHz
88±3dB /50cm
86±3dB /50cm
87±3dB /50cm
2.0W / 3.0W
2.0W / 3.0W
2.0W / 3.0W
5％max. at 1KHz
5％max. at 1KHz
5％max. at 1KHz
-25℃～+85℃
-20℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K50B96B
LF-K50B97A
Win Trust Through Quality
LF-K50B96B
LF-K50B97A
8Ω±15％
8Ω±15％
480Hz±20％
660Hz±20％
Fo～4.8KHz
Fo～20KHz
90±3dB /50cm
85±3dB /50cm
2.0W / 3.0W
0.25W / 0.5W
5％max. at 1KHz
5％max. at 2KHz
-25℃～+50℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K57B10A
LF-K57B15A
LF-K57B28A
Win Trust Through Quality
LF-K57B10A
LF-K57B15A
LF-K57B28A
8Ω±15％
8Ω±15％
8Ω±15％
500Hz±20％
380Hz±20％
575Hz±20％
Fo～6KHz
Fo～20KHz
Fo～6KHz
85±3dB /50cm
105±3dB /10cm
100±3dB /10cm
0.2W / 0.5W
0.25W / 0.5W
0.2W /0.5W
10％max. at 1KHz
5％max. at 1KHz
5％max. at 1KHz
-20℃～+60℃
-20℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K58B26A
LF-K68B29A
Win Trust Through Quality
LF-K58B26A
LF-K68B29A
8Ω±15％
8Ω±15％
340Hz±20％
180Hz±20％
Fo ～20KHz
Fo～15KHz
85±3dB /50cm
88±3dB /50cm
4.0W 5.0W
10W / 15W
5％max. at 1KHz
5％max. at 1KHz
-20℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K70A21A
LF-K77B28B
LF-K110B52B
Win Trust Through Quality
LF-K70A21A
LF-K77B28B
LF-K110B52B
4Ω±15％
8Ω±15％
8Ω±15％
450Hz±20％
350Hz±20％
105Hz±20％
Fo ～6KHz
Fo～16KHz
Fo～9KHz
98±3dB /50cm
97±3dB /50cm
85±3dB /100cm
6.0W 10W
2.0W / 3.0W
7.0W / 10W
5％max. at 1KHz
5％max. at 1KHz
5％max. at 1KHz
-20℃～+60℃
-20℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K1525B54A
LF-K2035B78A
Win Trust Through Quality
LF-K1525B54A
LF-K2035B78A
8Ω±15％
8Ω±15％
630Hz±20％
580Hz±20％
Fo～20KHz
Fo～20KHz
90±3dB /10cm
85±3dB /50cm
1.0W / 1.5W
1.0W / 2.0W
5％max. at 1KHz
5％max. at 1KHz
-25℃～+50℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K2323B10A
LF-K2720B72A
Win Trust Through Quality
LF-K2323B10A
LF-K2720B72A
8Ω±15％
8Ω±15％
380Hz±20％
650Hz±20％
Fo～20KHz
Fo～20KHz
82±3dB /50cm
88±3dB /10cm
2.0W / 4.0W
0.25W / 0.4W
5％max. at 1KHz
5％max. at 2KHz
-25℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K2828B11A
LF-K3232B15A
Win Trust Through Quality
LF-K2828B11A
LF-K3232B15A
8Ω±15％
8Ω±15％
310Hz±20％
250Hz±20％
Fo～20KHz
Fo～20KHz
80±3dB /10cm
83±3dB /50cm
2.0W / 4.0W
2.0W / 4.0W
5％max. at 1KHz
5％max. at 1KHz
-25℃～+60℃
-25℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K3520B78A
Win Trust Through Quality
LF-K3520B78A
8Ω±15％
620Hz±20％
Fo～20KHz
85±3dB /50cm
2.0W / 3.0W
5％max. at 1.2KHz
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K3636B15C
LF-K40B28B
Win Trust Through Quality
LF-K3636B15C
LF-K40B28B
8Ω ±15％
8Ω±15％
230Hz±20％
450Hz±20％
Fo～20KHz
Fo～20KHz
83±3dB /50cm
85±3dB /50cm
2.0W / 4.0W
3.0W / 5.0W
5％max. at 1KHz
5％max. at 1KHz
-20℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K4040B15A
Win Trust Through Quality
LF-K4040B15A
8Ω ±15％
240Hz±20％
Fo～20KHz
83±3dB /50cm
2.0W / 4.0W
5％max. at 1KHz
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K5050B11A
LF-K7070B43A
Win Trust Through Quality
LF-K5050B11A
LF-K7070B43A
8Ω ±15％
8Ω±15％
515Hz±20％
166Hz±20％
Fo～10KHz
Fo～20KHz
88±3dB /50cm
87±3dB /50cm
0.3W / 0.6W
15W / 20W
5％max. at 1KHz
5％max. at 500Hz
-20℃～+60℃
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K2040B15A
Win Trust Through Quality
LF-K2040B15A
8Ω±15％
700Hz±20％
Fo～20KHz
98±3dB /10cm
1.0W / 2.0W
10％max. at 1KHz
-20℃～+60℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K3532B73A
LF-K6030B18A
Win Trust Through Quality
LF-K3532B73A
LF-K6030B18A
8Ω±15％
8Ω±15％
550Hz±20％
500Hz±20％
Fo～17KHz
Fo～20KHz
89±3dB /10cm
93±3dB /50cm
1.5W / 2.0W
1.5W / 2.0W
5％max. at 1KHz
5％max. at 1KHz
-10℃～+55℃
-25℃～+50℃
Micro Speaker
Part No.
型
號
Nominal Impedance
額定阻抗
Resonant frequency（Fo）
諧振頻率
Effective Freq. Range
頻響範圍
Sound Pressure Level（dB）
輸出音壓
Input Power （Nom. / Max.）
可承受輸入功率（額定/最大）
Distortion
諧波失真率
Operating Temp range
工作溫度
LF-K65B15A-A
LF-K8282A60B
Win Trust Through Quality
LF-K65B15A-A
LF-K8282A60B
8Ω±15％
4Ω±15％
140Hz±20％
600Hz±20％
Fo～20KHz
Fo～15KHz
86±3dB /50cm
92±3dB /50cm
0.5W / 1.0W
1.0W / 2.0W
5％max. at 1KHz
5％max. at 1KHz
-20℃～+60℃
-20℃～+60℃
Dynamic speaker and receiver
LF-SD1308A
Speaker
Receiver
.
Part No.
型
號
Sensitivity
Input Power
( nom./max.)
靈敏度
可承受輸入功率
Receiver
128±3dB at
1KHz 100m Vrms
Speaker
85±3dB at average
800 ~ 3KHZ
LF-SD1308A
Win Trust Through Quality
0.2W/0.3W
Impedance
(Ohm)
阻
抗
8 ± 15％
Operating
Temp.(℃)
工作溫度
-20℃~ +75℃
Dynamic speaker and receiver
LF-SD1813B
Receiver
Speaker
LF-SD1813D
Receiver
Speaker
Sensitivity
Input Power
( nom./max.)
靈敏度
可承受輸入功率
Receiver
117 3dB at
1KHz.100m Vrms
0.03W/0.05W
Speaker
85  3 dB at average
0.7~3 KHz 2 Vrms
0.5W/1.0W
Receiver
120 3dB at
1KHz.100m Vrms
0.01W/0.03W
Speaker
90  3 dB at average
0.8~3 KHz 2 Vrms
0.5W/0.7W
Part No.
型
號
LF-SD1813B
LF-SD1813D
Win Trust Through Quality
Impedance
(Ohm)
阻
抗
Operating Temp. (℃)
工作溫度
8  15%
-20C~ +75C
8  15%
-20C~ +70C
Dynamic speaker and receiver
LF-SD1813E
Receiver
Speaker
Sensitivity
靈敏度
Input Power
( nom./max.)
可承受輸入功率
Receiver
120± 3dB at
1KHz 60m Vrms
0.01W/0.03W
Speaker
90± 3dB at average
0.8~3 KHz 2.0 Vrms
Part No.
型
號
LF-SD1813E
Win Trust Through Quality
0.5W/0.7W
Impedance
(Ohm)
阻
抗
Operating Temp. (℃)
工作溫度
8 ± 15%
-20℃~ +60℃
Dynamic Receiver
LF-DR1039A-A
Part No.
Sensitivity
Input Power
（nom./max.）
型
靈 敏 度
可承受輸入功率
號
LF-DR1039A-A
113±3dB
at 1KHZ 100m Vrms
Win Trust Through Quality
Impedance
(Ohm)
阻
抗
0.01W / 0.03W 32Ω±15％
Operating
Temp.(℃)
工作溫度
-20 ~+60℃
Weight
重
量
0.7g
Dynamic Receiver
LF-DR3518A
Part No.
Sensitivity
Input Power
（nom./max.）
型
靈 敏 度
可承受輸入功率
號
LF-DR3518A
93±3dB
at 1KHZ 60m Vrms
Win Trust Through Quality
Impedance
(Ohm)
阻
抗
Operating
Temp.(℃)
工作溫度
10mW / 20mW 150Ω±15％ -20 ~+60℃
Weight
重
量
33g
Electret Condenser Microphone
Description of Part No. of Electret Condenser Microphone
LF
-
M
①
①.
②
6052
F
③
④
-
O
W
C
⑤
⑥
⑦
-
11
R
⑧
⑨
LF ：Compliant with RoHS requirement.
：Not compliant with RoHS requirement.
②. M
：Electret condenser microphone.
M D：Digital Electect condenser microphone.
③. Dimension（mm）：Ø6.0×5.2mm
④. F：Foil Electret Condenser Microphone
B：Back Electret Condenser Microphone
⑤. Directional：
◆ O：Omni-directional
◆ U：Unidirectional
◆ N：Noise canceling
⑥. Connection method
◆ P：Pin type
◆ S：Soldering type
◆ C：by conductive pad
◆ W：Lead wire type
◆ F：by FPCN：Non-soldering type
◆ D：SMD type
⑦. Sensitivity
◆ For Omni-directional & Unidirectional & Noise canceling
A：-44
B：-42
C：-40
D：-38
E：-36
H：-46
I：-48
J：-50
K：-52
L：-54
X：-60
Y：-62
Z：-64
⑧. Appearance
⑨. R：rubber holder
⑩. Built-in capacitor
◆ A：10pF
B：33pF
C：5.6pF
Test circuit
Note：
We take “Pascal”（Pa）-the recommendation of I.E.C. for the volume.
The sensitivity with ”Pa” indication will increase 20dB than with “μ bar” indication.
For example, -40dB（0dB=1V/Pa）=-60dB（0dB=1V/μ bar）.
Win Trust Through Quality
-
AC
⑩
Omni-directional Electret Condenser Microphone
LF-M3515-O series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -44~ -60 (0dB=1V/Pa, 1KHz)
Impedance:/阻抗 Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency:/頻率 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 56dB
LF-M4010-O series
H:1.0 mm
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -42~ -60 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 56dB
LF-M4013-O series
H:1.3mm
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -40~ -60 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 56dB
Win Trust Through Quality
Omni-directional Electret Condenser Microphone
LF-M4015-O series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -39~ -60 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 56dB
LF-M4020-O series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -32~ -60 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency:/頻率 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 58dB
LF- M4530-O series
H=3.0mm
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -35~ -50 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 58dB
Win Trust Through Quality
Omni-directional Electret Condenser Microphone
LF-M6012-O series
H=1.2, mm
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -38~ -56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 58dB
LF-M6015-O series
H= 1.5mm
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -38~ -56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 58dB
LF-M6018-O series
H=1.8,mm
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -38~ -56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 3V
S/N ratio/訊號雜音比: More than 58dB
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Omni-directional Electret Condenser Microphone
LF-M6022-O series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -36~ -50 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 3V
S/N ratio/訊號雜音比: More than 58dB
LF-M6027-O series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -36~ -50 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 3V
S/N ratio/訊號雜音比: More than 58dB
LF-M6050-O series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -32~ -50 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 3V
S/N ratio/訊號雜音比: More than 58dB
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Omni-directional Electret Condenser Microphone
LF-M9745-O series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -32~ -50 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 3V
S/N ratio/訊號雜音比: More than 60dB
LF-M9752-O series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -32~ -50 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 3V
S/N ratio/訊號雜音比: More than 60dB
LF-M9767-O series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -32~ -50 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 3V
S/N ratio/訊號雜音比: More than 60dB
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Omni-directional Electret Condenser Microphone
LF-M4015-OF series
Vs=2V, RL=2.2Kohm
Sensitivity/靈敏度: -32~ -60 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 2V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 50dB
Capacitor: 10pF + 33Pf
LF-M6013-OF series
Vs=2V, RL=2.2Kohm
Sensitivity/靈敏度: -40~ -56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 2V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 50dB
Capacitor: 10pF + 33pF
LF-M6013-OC series
Vs=2V, RL=2.2Kohm
Sensitivity/靈敏度: -48~ -60 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 50~16,000Hz
Standard operation voltage/中心工作電壓: 2V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1.5V
S/N ratio/訊號雜音比: More than 50dB
Capacitor: 10pF + 33pF
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Omni-directional Electret Condenser Microphone
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Unidirectional Electret Condenser Microphone
LF-M4015-U series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -44~ -56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Unidirectional
Frequency/頻率: 100~12,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 55dB
LF-M6015-U series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -44~-56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Unidirectional
Frequency/頻率: 100~12,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 55dB
LF-M6022-U series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -44~-56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 680ohm
Directivity/指向性: Unidirectional
Frequency/頻率: 100~16,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 60dB
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Unidirectional Electret Condenser Microphone
LF-M6027-U series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -44~ -56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Unidirectional
Frequency/頻率: 100~12,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 55dB
LF-M6050-U series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -42~-56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Unidirectional
Frequency/頻率: 100~12,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 55dB
LF-M9745-U, LF-M9752-U series
Vs=1.5V, RL=680ohm
Sensitivity/靈敏度: -42~-56dB (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 680ohm
Directivity/指向性: Unidirectional
Frequency/頻率: 100~16,000Hz
Standard operation voltage/中心工作電壓: 1.5V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 60dB
LF-M9767-U series
Vs=1.5V, RL=680ohm
Sensitivity/靈敏度: -42~ -56dB (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 680ohm
Directivity/指向性: Unidirectional
Frequency/頻率: 100~16,000Hz
Standard operation voltage/中心工作電壓: 1.5V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 60dB
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1
Unidirectional Electret Condenser Microphone
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Noise-Canceling Electret Condenser Microphone
LF-M6015-N series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -48~-60 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Noise-canceling
Frequency/頻率: 100~10,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 50dB
LF-M6022-N series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -44~-56 (0dB=1V/Pa, 1KHz)
Impedance:/阻抗 Less than 680ohm
Directivity/指向性: Noise-canceling
Frequency/頻率: 100~10,000Hz
Standard operation voltage/中心工作電壓: 1.5V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 58dB
LF-M6027-N series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -42~-56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Noise-canceling
Frequency/頻率: 100~10,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 50dB
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Noise-Canceling Electret Condenser Microphone
LF-M6050-N series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -42~-56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Noise-canceling
Frequency/頻率: 100~10,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 50dB
LF-M9745-N, LF-M9752-N series
Vs=1.5V, RL=680 ohm
Sensitivity/靈敏度: -42~-56 (0dB=1V/Pa, 1KHz)
Impedance:/阻抗 Less than 680 ohm
Directivity/指向性: Noise-canceling
Frequency/頻率: 100~10,000Hz
Standard operation voltage/中心工作電壓: 1.5V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 58dB
LF-M9767-N series
Vs=1.5V, RL=680 ohm
Sensitivity/靈敏度: -42~-56 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 680 K ohm
Directivity/指向性: Noise-canceling
Frequency/頻率: 100~10,000Hz
Standard operation voltage/中心工作電壓: 1.5V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
Sensitivity reduction/靈敏度減少: Within -3dB at 1V
S/N ratio/訊號雜音比: More than 58dB
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Omni-directional Electret Condenser Microphone -SMD Type
LF-M6022B-OD series
SMD Type
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -38~ -48 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率:70~14,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
S/N ratio/訊號雜音比: More than 58dB
LF-M6027B-OD series
SMD Type
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -36~ -48 (0dB=1V/Pa, 1KHz)
Impedance/阻抗: Less than 2.2Kohm
Directivity/指向性: Omni-directional
Frequency/頻率: 70~14,000Hz
Standard operation voltage/中心工作電壓: 3V
Operation voltage/工作電壓: 10V (max).
Current consumption/消耗電流: Max. 0.5mA
S/N ratio/訊號雜音比: More than 58dB
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Omni-directional Electret Condenser Microphone
- Digital Signal Output Type
LF-MD6022-OP series
Vs=3V, RL=2.2Kohm
Sensitivity/靈敏度: -21~ -28 (0dB=1V/Pa, 1KHz)
Directivity/指向性: Omni-directional
Clock Input logic low level：0.6max.
Clock Input logic high level：1.4min.
Clock output logic low level：0.2max.
Clock output logic low level：1.8min.
Current consumption/消耗電流: Max. 0.5mA
Analog SNR: -58dB/Pa 1KHz
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e
Electret Condenser
Microphone
Microphone Holder
RH4001A
RH4015A
RH4015B
RH4530A
RH6012A
RH6015A
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e
Electret Condenser
Microphone
Microphone Holder
RH6018A
RH6022A
RH6022B
RH6022C
RH6022D
RH6027B
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e
Electret Condenser
Microphone
Microphone Holder
RH6027C
RH6027D
RH6052C
RH6052D
RH6052E
RH9750A
RH9767B
RH9767C
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e
Electret Condenser
Microphone
Microphone Holder
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Piezoelectric ceramic
Description of Part No. of Piezoelectric ceramic
D
20
E
40
B
D：Piezo disc
W：Piezo disc with lead wire
Diameter of metal plate （mm）
E：External drive type
S：Self drive type
K：For Piezo speaker
Resonant frequency（KHz）
（i.e.：2500 will be indicated as 2.5；700Hz will be 07）
Material of metal plate
◆ A：Nife-alloy
◆ B：Brass
◆ S：Stainless steel
Remark：Piezo electric ceramic is not in the list of restricted Part No. of RoHS.
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Piezoelectric ceramic
Part No.
Resonant
Frequency
KHz
Resonant
Impedance
Ω
max.
Capacitance
pF
30
Dimension mm
Type
D
d
T
t
Material of
metal plate
D15E40B 4.0
D15E60B 6.0
0.5
500
31,000
A
15.0
11.3
0.12
0.05 0.05
Brass
1.0
1,000
14,000
A
15.0
11.3
0.23
0.10 0.03
Brass
D16E36B 3.6
D18E36B 3.6
0.5
1,000
21,000
A
16.0
11.3
0.18
0.10 0.05
Brass
0.5
1,000
14,000
A
18.0
11.3
0.23
0.10 0.05
Brass
D18S36B 3.6
D20E20B 2.0
0.5
1,000
12,000
B
18.0
11.3
0.23
0.10 0.05
Brass
0.5
1,000
39,000
A
20.0
14.6
0.13
0.05 0.02
Brass
D20E40B 4.0
D20E65B 6.5
0.5
400
25,000
A
20.0
15.0
0.22
0.10 0.02
Brass
0.5
300
15,000
A
20.0
15.0
0.42
0.21 0.03
Brass
D20S40B 4.0
D20S65B 6.5
0.5
600
20,000
B
20.0
15.0
0.28
0.15 0.05
Brass
0.1
400
10,000
B
20.0
15.0
0.43
0.20 0.03
Brass
D21S34B 3.4
D21S40B 4.0
0.5
800
18,000
B
21.0
14.6
0.26
0.10 0.05
Brass
0.5
350
22,000
B
21.0
14.6
0.33
0.20 0.05
Brass
D27E26B 2.6
D27E35B 3.5
0.3
200
60,000
A
27.0
20.0
0.22
0.10 0.02
Brass
0.5
400
24,000
A
27.0
19.8
0.43
0.20 0.05
Brass
D27E40B 4.0
D27S27A 2.7
0.5
500
28,000
A
27.0
20.0
0.50
0.23 0.03
Brass
0.5
350
36,000
B
27.0
19.8
0.33
0.20 0.05
Ni-alloy
D27S35B 3.5
D27S44B 4.4
0.5
500
19,000
B
27.0
19.8
0.43
0.20 0.05
Brass
0.5
350
17,000
B
27.0
19.8
0.53
0.25 0.05
Brass
D31E13A 1.3
D32E11A 1.1
0.5
1,000
47,000
A
31.0
20.0
0.23
0.10 0.05
Ni-alloy
0.5
1,000
60,000
A
32.0
20.0
0.23
0.10 0.05
Ni-alloy
D35E29B 2.9
D35S29B 2.9
0.5
300
30,000
A
35.0
24.8
0.58
0.30 0.05
Brass
0.5
600
25,000
B
35.0
25.0
0.58
0.20 0.03
Brass
D35S34S 3.4
0.5
250
35,000
B
35.0
24.8
0.58
0.40 0.05
SUS
D41E08A
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0.8
Piezoelectric ceramic
D50E10B
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1.0
Piezoelectric Type
Description of Part No. of Piezo electric type series
LF
–
P
B
14
P
40
A
LF ：Compliant with RoHS requirement.
：Not Compliant with RoHS requirement.
Piezoelectric type
B：Buzzer for driver circuit built-in
S：Sounder for self drive
E：Sounder for external drive
K：Speaker
A：Speaker with amplifier
Diameter（mm）
（i.e.：24.4 will be indicated as 24.0mm；24.5 will be 25.0mm）
Connection method
◆ P：Pin （PCB mounting）
◆ T：SMD package
◆ W：Lead wire type
Resonant frequency（KHz）
（i.e.：4300Hz will be indicated as 43；700Hz will be 07）
A～Z to stand for different versions.
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Piezoelectric Type
PK Series
LF-PK35W01A
for voice synthesis
LF-PK35W02A
(for voice synthesis)
Part No.
Frequency
Range Hz
Capacitance
at 120 Hz 25
180nF 30
LF-PK35W01A
SPL
Vp-p
75dB min. 630KHz
500 20K
LF-PK35W02A
at 9Vp-p square wave, 10cm
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180nF 30
Input
Voltage
75dB min. 630KHz
max
7V rms
(sine wave)
Operating
Temp.
Weight
(gms)
-20 +80
0.9
Piezoelectric Type
PK Series
LF-PK32W20A
LF-PK32W28A
for alarm device
LF-PK50W01A
LF-PK50W02A
LF-PK50W01A
(for alarm device)
LF-PK50W02A
Part No.
Frequency
Range Hz
Capacitance
at 120 Hz 25
230nF 30
LF-PK32W20A
SPL
105dB min. 2.12KHz
Input Voltage
Vp-p
max.
Operating
Temp.
Weight
(gms)
-20 +80
0.9
60
500 10K
LF-PK32W28A
130nF 30
105dB min. 2.80KHz
30
LF-PK50W01A
230nF 30
110dB min. 2.12KHz
60
-20 +80
130nF 30
110dB min. 2.80KHz
60
-20 +70
500 10K
LF-PK50W02A
20
at 9Vp-p square wave , 10cm
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Piezoelectric Type（PB Series）
LF-PB14T40A-A
SMD Package
Reflow,
Non-washable
（mA）
（dB）
LF-PB14P40A
Pin Type
Non-washable
（VDC）
LF-PB14P40D
Pin Type
Non-washable
※ Sound
Pressure Level
（dB min.）
Current
Consumption
9VDC（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PB14T40A-A
85
9.0 max.
4.5
Continuous tone
3 ～ 24
-20～+105
2.0
LF-PB14P40A
85
9.0 max.
4.3
Continuous tone
3 ～ 24
-20～+105
1.0
LF-PB14P40D
85
9.0 max.
4.3
Continuous tone
3 ～ 24
-20～+105
1.0
Part No.
型
號
※ at 9VDC 10cm.
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Operating
Weight
Temp.（℃） (gms)
Piezoelectric Type（PB Series）
（mA）
（dB）
LF-PB24P34A
LF-PB24P34B
LF-PB24P34A
（VDC）
（mA）
（dB）
Pin Type
LF-PB24P34B
（VDC）
※ Sound
Pressure Level
（dB min.）
Current
Consumption
9VDC（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PB24P34A
88
9.0 max.
3.4
Continuous tone
3 ～ 30
-20～+105
3.5
LF-PB24P34B
98
10.0 max.
3.0
Continuous tone
3 ～ 18
-20～+105
3.5
Part No.
型
號
※ at 9VDC 10cm.
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Operating
Weight
Temp.（℃） （gms）
Piezoelectric Type（PB Series）
（dB）
LF-PB24P34D
LF-PB24P34E
LF-PB24P34F
LF-PB24P34G
（mA）
LF-PB24P34D
Pitch：15.0mm
（VDC）
LF-PB24P34D
LF-PB24P34E
LF-PB24P34G
（dB）
（mA）
LF-PB24P34E、LF-PB24P34F
Pitch：12.0mm
Pin Type
（VDC）
LF-PB24P34G
Pitch：17.5mm
LF-PB24P34F
(dB)
LF-PB25P32A
(mA)
Pin Type
(VDC)
Part No.
※ Sound
Pressure Level
（dB min.）
Current
Consumption
9VDC（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
型號
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PB24P34D
LF-PB24P34E
LF-PE24P34G
85
9.0 max.
3.0
Continuous tone
3 ～ 30
-20～+105
3.5
LF-PB24P34F
98
10.0 max.
3.0
Continuous tone
3 ～ 18
-20～+105
3.0
LF-PB25P32A
85
8.0 max.
3.2
Continuous tone
3 ～ 30
-20～+105
3.0
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Operating
Weight
Temp.（℃） （gms）
Piezoelectric Type（PB Series）
※ at 9VDC 10cm.
LF-PB30P35A
(dB)
(mA)
Pin Type
(VDC)
（dB）
LF-PB30P25A
LF-PB30P25A-A
（mA）
Pin Type
（VDC）
（mA）
（dB）
LF-PB30P25B
LF-PB30P25B-A
Pin Type
（VDC）
（dB）
LF-PB30P39A
（mA）
Pin Type
Part No.
型
號
LF-PB30P35A
LF-PB30P25A
LF-PB30P25B
LF-PB30P25A-A
LF-PB30P25B-A
LF-PB30P39A
（VDC）
※ Sound
Pressure
Level
（dB min.）
輸出音壓
Current
Consumption
9VDC（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
消耗電流
振盪頻率
工作電壓
工作溫度
重量
93
12.0 max.
3.5 Continuous tone
3 ～ 30
-20～+105
3.5
88
8.0 max.
2.5 Continuous tone
3 ～ 30
-20～+105
3.5
98
16.0 max.
2.5 Continuous tone
3 ～ 30
-20～+105
3.5
100
15.0 max.
3.9 Continuous tone
3 ～ 24
-20～+80
8.0
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Operating
Weight
Temp.（℃） （gms）
Piezoelectric Type（PB Series）
※ at 9VDC 10cm.
LF-PB42P29A
LF-PB42P29A
LF-PB42P29B
LF-PB42P29C
LF-PB42P29D
LF-PB42P29B
（dB）
（mA）
（dB）
（mA）
（VDC）
（VDC）
Pin Type
LF-PB42P29C
LF-PB42P29D
（dB）
（dB）
（mA）
（mA）
（VDC）
（VDC）
※ Sound
Pressure Level
（dB min.）
Current
Consumption
9VDC（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PB42P29A
90
10.0 max.
2.9
Continuous tone
3 ～ 30
-20～+105
11.5
LF-PB42P29B
105
13.0 max.
2.9
Continuous tone
3 ～ 24
-20～+105
12.0
LF-PB42P29C
100
12.0 max.
2.9
Pulse tone
3 ～ 30
-20～+105
13.5
LF-PB42P29D
110
18.0 max.
2.9
Dual tone
3 ～ 15
-20～+105
13.0
Part No.
型
號
※ at 9VDC 10cm.
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Operating
Weight
（gms）
Temp.（℃）
Piezoelectric Type（PB Series）
（mA）
（dB）
LF-PB24W34A
（VDC）
Lead Wire Type
LF-PB30W25A
LF-PB30W25B
（dB）
（mA）
Lead Wire Type
（VDC）
（mA）
（dB）
LF-PB30W25C
（VDC）
Lead Wire Type
※ Sound
Pressure Level
（dB min.）
Current
Consumption
9VDC（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PB24W34A
85
8.0 max.
3.4
Continuous tone
3 ～ 30
-20～+105
11.5
LF-PB30W25A
85
8.0 max.
3 ～ 30
-20～+105
12.0
LF-PB30W25B
98
16.0 max.
3 ～ 30
-20～+105
13.5
LF-PB30W25C
88
9.0 max.
2.5
Continuous tone
2.5
Continuous tone
2.5
Continuous tone
3 ～ 30
-20～+105
13.5
Part No.
型
號
※ at 9VDC 10cm.
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Operating
Weight
（gms）
Temp.（℃）
Piezoelectric Type（PB Series）
LF-PB42W29A
LF-PB42W29A
LF-PB42W29B
LF-PB42W29C
LF-PB42W29D
（dB）
LF-PB42W29B
（mA）
（dB）
（mA）
（VDC）
Lead Wire Type
（VDC）
LF-PB42W29C
（dB）
LF-PB42W29D
（mA）
（dB）
（mA）
（VDC）
（VDC）
Part No.
※ Sound
Pressure Level
（dB min.）
Current
Consumption
9VDC（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
型號
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PB42W29A
90
10.0 max.
2.9
Continuous tone
3 ～ 30
-20～+105
13.0
LF-PB42W29B
105
13.0 max.
2.9
Continuous tone
3 ～ 24
-20～+105
13.5
LF-PB42W29C
100
12.0 max.
2.9
Pulse tone
3 ～ 30
-20～+105
13.5
LF-PB42W29D
110
18.0 max.
2.9
Dual tone
3 ～ 15
-20～+105
13.0
※ 9VDC 10cm.
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Operating
Weight
（gms）
Temp.（℃）
Piezoelectric Type（PB Series）
（mA）
（dB）
LF-PB28W35A
Panel mounted type
（VDC）
LF-PB30W32A
LF-PB30W32A-12
（dB）
（mA）
Panel mounted type
（VDC）
LF-PB30W35A-12
LF-PB30W35A-24
（dB）
（mA）
Panel mounted type
（VDC）
10cm（dB min.）
Current
Consumption
（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PB28W35A
95
10 max. /12V
4 ～ 28
-20～+60
15.0
LF-PB30W32A
100
20 max. /24V
1.5 ～ 28
-20～+60
15.0
LF-PB30W32A-12
100
12 max. /12V
3 ～ 15
-20～+60
15.0
LF-PB30W35A-12
100
15 max. /12V
1.5 ～ 16
-20～+60
15.0
LF-PB30W35A-24
105
20 max. /24V
1.5 ～ 28
-20～+60
15.0
Part No.
型
號
Sound
Pressure Level
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3.5
Fast pulse
3.2
Continuous tone
3.2
Pulse tone
3.5
Continuous tone
3.5
Continuous tone
Operating
Weight
Temp.（℃） （gms）
Piezoelectric Type（PB Series）
LF-PB43W29A
（dB）
（mA）
（VDC）
Panel mounted type
（dB）
LF-PB53W28A
（mA）
Panel mounted type
（VDC）
10cm（dB min.）
Current
Consumption
（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PB43W29A
110
60 max. /9V
2.9
Continuous tone
3 ～ 20
-20～+60
43.0
LF-PB53W28A
100
20 max. /9V
2.8
Continuous tone
3 ～ 12
-20～+60
38.0
Part No.
型
號
Sound
Pressure Level
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Operating
Weight
Temp.（℃） （gms）
Piezoelectric Type（PB Series）
LF-PB43P28A
LF-PB43P29A
LF-PB43P29B
（dB）
LF-PB43P28A
Panel mounted type
（mA）
（VDC）
LF-PB43P28B
LF-PB43P28C
（dB）
LF-PB43P28C
（mA）
（VDC）
Panel mounted type
LF-PB43P29D
（dB）
LF-PB43P28D
（mA）
Panel mounted type
（VDC）
10cm（dB min.）
Current
Consumption
（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
輸出音壓
消耗電流
工作電壓
工作溫度
重量
LF-PB43P28A
95
6 max. /9VDC
4～28
-20～+60
43.0
LF-PB43P28B
100
17 max. /110VAC
30～120
-20～+60
43.0
LF-PB43P28C
100
7 max. /12VDC
4～28
-20～+60
43.0
LF-PB43P28D
98
16 max. /220VAC
振盪頻率
2.8
Continuous
tone
2.8
Continuous
tone
2.8
Continuous
tone
2.8
Fast Pulse
60～250
-20～+60
43.0
LF-PB43P29A
LF-PB43P29B
95
6 max. /9VDC
6～28
-20～+60
43.0
Part No.
型
號
Sound
Pressure Level
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2.9 Fast tone
2.9 Slow tone
Operating
Weight
Temp.（℃） （gms）
Piezoelectric Type（PB Series）
（mA）
（dB）
LF-PB36P28B
（VDC）
（mA）
（dB）
LF-PB42P29E
（VDC）
（dB）
（mA）
LF-PB50P25A
（VDC）
10cm（dB min.）
Current
Consumption
（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PB36P28B
90
3 max. /9V
2.8
Continuous
tone
9～48
-20～+60
26.0
LF-PB42P29E
90
15 max. /24V
2.9
Continuous
tone
1～28
-20～+60
50.0
LF-PB50P25A
105
40 max. /9V
2.5
Continuous
tone
5～13
-20～+60
40.0
Part No.
型
號
Sound
Pressure Level
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Operating
Weight
Temp.（℃） （gms）
Piezoelectric Type（PE Series）
LF-PE14T35A-B
SMD Package
Non-washable reflow
Part No.
型
Capacitance
（120Hz 25℃）
Input
Voltage
輸出音壓
靜電容量
工作電壓
工作溫度
重量
80dB min. 3670Hz
15,000pF±30％
15Vp-p
-20～+105
1.4
號
LF-PE14T35A-B
Operating
Weight
Temp. （℃） (gms)
Sound Pressure Level
（9Vp-p square wave, 10cm）
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Piezoelectric Type（PE Series）
LF-PE14P40A-50
LF-PE14P40A-75
LF-PE14P40A-100
Pin Type
LF-PE14P40A-50（Pitch：5.0mm）
LF-PE14P40A-75（Pitch：7.5mm）
LF-PE14P40A-100（Pitch：10.0mm）
LF-PE17P40A-10A
LF-PE17P40A-10B
Pin Type
Part No.
型
號
LF-PE13P40D
LF-PE14P40A-50
LF-PE14P40A-75
LF-PE14P40A-100
LF-PE17P40A-10A
LF-PE17P40A-10B
LF-PE17P40A-10A（Pin-length：6.5mm）
LF-PE17P40A-10B（Pin-length：3.5mm）
Capacitance
（dB min.）10cm
Current
Consumption
（mA）
輸出音壓
消耗電流
靜電容量
工作電壓
工作溫度
重量
80
3.0 max.
12,000pF±30％
25 max.
-20～+70
1.3
18,000pF±30％
20 max.
-20～+105
1.4
14,000pF±30％
20 max.
-20～+105
1.4
Sound
Pressure Level
120Hz,25℃
4000Hz, 9Vp-p Square wave
85
3.0 max.
4096Hz, 9Vp-p Square wave
85
3.0 max.
4000Hz, 9Vp-p Square wave
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Input
Voltage
（Vp-p）
Operating Weight
Temp.（℃） (gms)
Piezoelectric Type（PE Series）
LF-PE22P40A-10A
LF-PE22P40A-10B
Pin Type
LF-PE22P40A-10A（Pin length：6.5mm）
LF-PE22P40A-10B（Pin length：3.5mm）
LF-PE22P40C-10A
LF-PE22P40C-10B
Pin Type
LF-PE22P40C-10A（Pin length：6.5mm）
LF-PE22P40C-10B（Pin length：3.5mm）
LF-PE24P40A
LF-PE24P60A
Pin Type
Part No.
型
號
LF-PE22P40A-10A
LF-PE22P40A-10B
LF-PE22P40C-10A
LF-PE22P40C-10B
LF-PE24P40A
LF-PE24P60A
（PE24P60A）
Capacitance
（dB min.）10cm
Current
Consumption
（mA）
輸出音壓
消耗電流
靜電容量
工作電壓
工作溫度
重量
85
3.0 max.
15,000pF±30％
30 max.
-20～+70
2.5
15,000pF±30％
30 max.
-20～+105
2.5
25,000pF±30％
30 max.
-20～+70
2.5
13,000pF±30％
40 max.
-20～+70
2.5
Sound
Pressure Level
120Hz,25℃
4000Hz, 9Vp-p square wave
100
3.0 max.
4000Hz, 9Vp-p square wave
90
3.0 max.
6000Hz, 9Vp-p square wave
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（Vp-p）
Operating Weight
Temp.（℃） (gms)
3.0 max.
4000Hz, 9Vp-p square wave
90
Input
Voltage
Piezoelectric Type（PE Series）
LF-PE23P20A
Pin Type
LF-PE23S20B
Pin Type
LF-PE30P25A-15A
LF-PE30P25A-15B
Pin Type
Part No.
型
號
LF-PE23P20A
LF-PE30P25A-15A（Pin length：6.5mm）
LF-PE30P25A-15B（Pin length：3.5mm）
Capacitance
（dB min.）10cm
Current
Consumption
（mA）
輸出音壓
消耗電流
靜電容量
工作電壓
工作溫度
重量
83
3.0 max.
25,000pF±30％
30 max.
-20～+105
2.5
25,000pF±30％
30 max.
-20～+105
2.5
20,000pF±30％
30 max.
-20～+105
2.5
Sound
Pressure Level
2000Hz, 9Vp-p square wave
85
LF-PE23S20B
LF-PE30P25A-15A
LF-PE30P25A-15B
120Hz,25℃
3.0 max.
2500Hz, 9Vp-p square wave
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（Vp-p）
Operating Weight
Temp.（℃） (gms)
3.0 max.
2000Hz, 9Vp-p square wave
85
Input
Voltage
Piezoelectric Type（PE Series）
LF-PE30P38A
Pin Type
LF-PE33P13A
LF-PE33P14A
Pin Type
Part No.
型
號
LF-PE30P38A
LF-PE33P13A
LF-PE33P14A
（LF-PE33P14A）
Capacitance
（dB min.）10cm
Current
Consumption
（mA）
輸出音壓
消耗電流
靜電容量
工作電壓
工作溫度
重量
85
3.0 max.
20,000pF±30％
30 max.
-20～+70
2.5
47,000pF±30％
30 max.
-20～+70
2.5
50,000pF±30％
30 max.
-20～+70
2.5
Sound
Pressure Level
120Hz,25℃
3800Hz, 9Vp-p square wave
85
3.0 max.
1300Hz, 9Vp-p square wave
85
3.0 max.
1400Hz, 9Vp-p square wave
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Input
Voltage
（Vp-p）
Operating Weight
Temp.（℃） (gms)
Piezoelectric Type（PE Series）
LF-PE44P07A
Pin Type
LF-PE44P09A
Pin Type
Part No.
型
號
Capacitance
（dB min.）10cm
Current
Consumption
（mA）
輸出音壓
消耗電流
靜電容量
工作電壓
工作溫度
重量
85
3.0 max.
90,000pF±30％
40 max.
-20～+70
5.5
77,000pF±30％
40 max.
-20～+70
8.5
Sound
Pressure Level
LF-PE44P07A
120Hz,25℃
Input
Voltage
（Vp-p）
Operating Weight
Temp.（℃） (gms)
900Hz, 9Vp-p square wave
85
3.0 max.
LF-PE44P09A
1200Hz, 9Vp-p square wave
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Piezoelectric Type（PE Series）
LF-PE10W32A
Lead Wire Type
LF-PE13W48A
Lead Wire Type
LF-PE14W40A
Lead Wire Type
LF-PE17W40A
Lead Wire Type
Part No.
輸出音壓
Current
Consumption
（mA）
消耗電流
75
3.0 max.
Sound
Pressure Level
（dB min.）10cm
型
號
LF-PE10W32A
LF-PE14W40A
LF-PE17W40A
120Hz,25℃
工作溫度
重量
11,000pF±30％
30 max.
-20～+70
2.5
15,000pF±25％
20 max.
-20～+85
5.5
15,000pF±30％
20 max.
-20～+105
5.5
14,000pF±30％
20 max.
-20～+105
8.5
3.0 max.
3.0 max.
4800Hz, 9Vp-p square wave
85
3.0 max.
4000Hz, 9Vp-p square wave
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（Vp-p）
Operating Weight
Temp.（℃） (gms)
工作電壓
4800Hz, 9Vp-p square wave
85
Input
Voltage
靜電容量
3200Hz, 9Vp-p square wave
80
LF-PE13W48A
Capacitance
Piezoelectric Type（PE Series）
LF-PE24W40A
LF-PE24W60A
Lead Wire Type
（LF-PE24W40A）
LF-PE24W40B
LF-PE24W60B
Lead Wire Type
（LF-PE24W40B）
LF-PE30W25A
LF-PE30W40A
Lead Wire Type
Part No.
型
號
LF-PE24W40A
LF-PE24W40B
LF-PE24W60A
LF-PE24W60B
LF-PE30W25A
LF-PE30W40A
（LF-PE30W25A）
Capacitance
（dB min.）10cm
Current
Consumption
（mA）
輸出音壓
消耗電流
靜電容量
90
3.0 max.
Sound
Pressure Level
Operating
Temp.（℃）
Weight
(gms)
工作電壓
工作溫度
重量
25,000pF±30％
30 max.
-20～+70
13,000pF±30％
40 max.
-20～+70
47,000pF±30％
20 max.
-20～+70
4.1
20,000pF±30％
30 max.
-20～+105
4.1
120Hz,25℃
4000Hz, 9Vp-p square wave
90
3.0 max.
2500Hz, 9Vp-p square wave
90
3.0 max.
4000Hz, 9Vp-p square wave
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（Vp-p）
3.0 max.
6000Hz, 9Vp-p square wave
85
Input
Voltage
2.4
2.0
2.4
2.0
Piezoelectric Type（PE Series）
LF-PE42W29A
Lead Wire Type
Part No.
輸出音壓
Current
Consumption
（mA）
消耗電流
85
3.0 max.
Sound
Pressure Level
（dB min.）10cm
型
號
LF-PE35W11A
LF-PE35W12A
LF-PE42W29A
Capacitance
120Hz,25℃
3.0 max.
3.0 max.
2900Hz, 9Vp-p square wave
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Weight
(gms)
工作電壓
工作溫度
重量
50,000pF±30％
40 max.
-20～+70
4.5
47,000pF±30％
40 max.
-20～+70
4.5
30,000pF±30％
30max.
-20~+105
13.1
1200Hz, 9vp-p square wave
100
（Vp-p）
Operating
Temp.（℃）
靜電容量
1100Hz, 9Vp-p square wave
85
Input
Voltage
Piezoelectric Type（PE Series）
LF-PE44W10B-B
Lead Wire Type
LF-PE44W10C
Lead Wire Type
Part No.
Sound
Pressure
Level
Current
Consumption
（mA）
Capacitance
輸出音壓
消耗電流
靜電容量
85
3.0 max.
90,000pF±30％
（dB min.）10cm
型
號
LF-PE44W10B-B
LF-PE44W10C
1000Hz, 9Vp-p square wave
750Hz, 9Vp-p square wave
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120Hz,25℃
77,000pF±30％
Input
Voltage
（Vp-p）
Operating Weight
Temp.（℃） (gms)
工作電壓
工作溫度
重量
40 max.
-20～+70
10.5
9.5
Piezoelectric Type（PS Series）
LF-PS14T40A-A
（dB）
(mA）
SMD Package
LF-PS14P40B
（VDC）
Pin Type
LF-PS24P34C-35
LF-PS24P34C-65
（dB）
Pin Type
（mA）
LF-PS24P34C-35（pin length：3.5mm）
LF-PS24P34C-65（pin length：6.5mm）
LF-PS25P32A
（VDC）
Pin Type
Part No.
※Sound
Pressure
Level
（dB min.）10cm
型
號
Current
Oscillating
Consumption
Frequency
at 9VDC（mA） （± 0.5KHz）
輸出音壓
消耗電流
LF-PS14T40A-A
85
9.0 max.
LF-PS14P40B
85
9.0 max.
LF-PS24P34C-35
LF-PS24P34C-65
85
LF-PS25P32A
85
※ 9VDC by recommended circuit
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Working
Voltage
（VDC）
Operating
Weight
Temp.（℃） (gms)
振盪頻率
工作電壓
工作溫度
重量
4.5
Continuous tone
4.3
Continuous tone
3 ～ 24
-20～+105
1.0
3 ～ 24
-20～+105
1.0
8.0 max.
3.4
3 ～ 30
-20～+105
2.8
8.0 max.
3.2
3 ～ 30
-20～+105
2.5
Piezoelectric Type（PS Series）
Pin Length：
LF-PS24P34A：6.0mm
LF-PS24P34B：12.0mm
LF-PS24P34A-A：3.0mm
LF-PS24P34A-B：4.5mm
Pin Type
（VDC）
LF-PS24P40A
LF-PS24P40B
LF-PS24P40A-A
LF-PS24P40A-B
（dB）
型
號
(mA）
Pin Length：
LF-PS24P40A：6.0mm
LF-PS24P40B：12.0mm
LF-PS24P40A-A：3.0mm
LF-PS24P40A-B：4.5mm
Pin Type
Part No.
（mA）
（dB）
LF-PS24P34A
LF-PS24P34B
LF-PS24P34A-A
LF-PS24P34A-B
（dB min.）10cm
Current
Consumption at
9VDC（mA）
輸出音壓
消耗電流
※ Sound
Pressure Level
LF-PS24P34A
LF-PS24P34B
LF-PS24P34A-A
LF-PS24P34A-B
LF-PS24P40A
LF-PS24P40B
LF-PS24P40A-A
LF-PS24P40A-B
90
90
※ 9VDC by recommended circuit
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8.0 max.
8.0 max.
（VDC）
Operating
Temp.(℃)
Weight
（± 0.5KHz）
Working
Voltage
（VDC）
振盪頻率
工作電壓
工作溫度
重量
-20～+70
3.0
3.6
3.0
3.0
-20～+70
3.0
3.6
3.0
3.0
Oscillating
Frequency
3.4
4.0
3 ～ 30
3 ～ 30
(gms)
Piezoelectric Type（PS Series）
（dB）
LF-PS30P26A
(mA）
Pin Type
（VDC）
（dB）
LF-PS30P37A
(mA)
Pin Type
（VDC）
（dB）
LF-PS39P34A
(mA)
Pin Type
（VDC）
Part No.
型
號
※ Sound
Pressure Level
（dB min.）10cm
Current
Oscillating
Consumption
Frequency
at 9VDC（mA） （± 0.5KHz）
Working
Voltage
（VDC）
Operating
Weight
Temp.（℃） (gms)
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PS30P26A
85
8.0 max.
2.6
3 ～ 30
-20～+70
4.0
LF-PS30P37A
85
8.0 max.
3.7
3 ～ 30
-20～+70
4.0
LF-PS39P34A
90
8.0 max.
3.4
3 ～ 30
-20～+70
2.8
※ 9VDC by recommended circuit
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Piezoelectric Type（PS Series）
LF-PS24W34A
（dB）
（mA）
Lead Wire type
LF-PS24W34B
（VDC）
Lead Wire Type
LF-PS24W65A
（dB）
（mA）
Lead Wire Type
LF-PS24W65B
（VDC）
Lead Wire Type
※ Sound
Pressure Level
（dB min.）10cm
Current
Consumption at
9VDC（mA）
Oscillating
Frequency
（± 0.5KHz）
Working
Voltage
（VDC）
Operating
Temp.
（℃）
Weight
(gms)
輸出音壓
消耗電流
振盪頻率
工作電壓
工作溫度
重量
LF-PS24W34A
85
8.0 max.
3.4
3 ～ 30
-20～+70
2.5
LF-PS24W34B
85
8.0 max.
3.4
3 ～ 30
-20～+70
2.5
LF-PS24W65A
85
8.0 max.
6.0
3 ～ 30
-20～+70
2.3
LF-PS24W65B
85
8.0 max.
6.0
3 ～ 30
-20～+70
2.1
Part No.
型
號
※ 9VDC by recommended circuit
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Magnetic Type
Description of Part No. of magnetic type series
LF
–
MB
12
A
01
LF ：Compliant with RoHS requirement.
：Not Compliant with RoHS requirement.
MT：Magnetic Transducer（external drive type）
MB：Magnetic Buzzer（self-drive type）
Diameter of magnetic type（mm）
A～Z to stand for different versions.
Rated Voltage
（i.e.：1.5VDC will be indicated as 01；6VDC will be 06）
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Magnetic Buzzer
LF-MB12A03
LF-MB12A01
(dB)
(mA)
LF-MB12A05
(dB)
(VDC)
Part No.
型
號
Rated Voltage (VDC)
額定電壓
Operating Voltage (VDC)
工作電壓
Current Consumption (mA)
消耗電流
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
(mA)
(dB)
LF-MB12A12
(mA)
(dB)
(VDC)
(VDC)
(mA)
(VDC)
LF-MB12A01
LF-MB12A03
LF-MB12A05
LF-MB12A12
1.5
3
5
12
1.4~2
2~5
3~7
9~15
25max
30max
30max
30max
75dB min.
82dB min.
83dB min.
83dB min.
2,300  300
2,300  500
2,300  400
2,300  300
- 20~+70
- 20~+70
- 20~+70
- 20~+70
1.6gms.
1.6gms.
1.6gms.
1.6gms.
Magnetic Buzzer
LF-MB12B06
LF-MB12B01
(dB)
(mA)
LF-MB12B12
(dB)
(VDC)
Part No.
型
號
Rated Voltage (VDC)
額定電壓
Operating Voltage (VDC)
工作電壓
Current Consumption (mA)
消耗電流
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
(mA)
(dB)
LF-MB12B24
(mA)
(VDC)
(dB)
(mA)
(VDC)
(VDC)
LF-MB12B01
LF-MB12B06
LF-MB12B12
LF-MB12B24
1.5
5
12
24
1.3~2
3~7
8~15
15~27
20max
30max
30max
30max
75dB min.
85dB min.
85dB min.
85dB min.
2,300  300
2,300  300
2,300  300
2,300  300
- 20~+70
- 25~+80
- 20~+70
- 20~+70
2.0gms.
2.0gms.
2.0gms.
2.0gms.
Magnetic Buzzer
LF-MB13T05
(dB)
(mA)
(VDC)
LF-MB13T12
(dB)
(mA)
(SMD Package)
Non-washable Reflow
(VDC)
Part No.
型
號
LF-MB13T05
LF-MB13T12
Rated Voltage (VDC)
額定電壓
5
12
Operating Voltage (VDC)
工作電壓
4~7
8~16
Current Consumption (mA)
消耗電流
30 max
30max
Sound Pressure Level at 10cm
輸出音壓
90dB min.
90dB min.
Resonant Frequency (Hz)
諧振頻率
2,400  300
2,400  300
Operating Temperature (℃)
工作溫度
- 30~ + 85
- 30~ + 85
Weight
重
量
2.0gms.
2.0gms.
Win Trust Through Quality
Magnetic Buzzer
LF-MB09B03
LF-MB09B03
(dB)
(mA)
(VDC)
LF-MB09B05
LF-MB09B05
(dB)
(mA)
(VDC)
Part No.
型
號
LF-MB09B03
LF-MB09B05
Rated Voltage (VDC)
額定電壓
3
5
Operating Voltage (VDC)
工作電壓
2~4
3~8
Current Consumption (mA)
消耗電流
30 max
30 max
Sound Pressure Level at 10cm
輸出音壓
75 dB min.
85 dB min.
Resonant Frequency (Hz)
諧振頻率
2,300  500
2,700  200
Operating Temperature (℃)
工作溫度
- 20 ~ + 70
- 20 ~ + 80
Weight
重
量
1.0gms.
1.0gms.
Win Trust Through Quality
Magnetic Buzzer
LF-MB16A12
LF-MB16A12
(dB)
(mA)
(VDC)
Part No.
型
號
Rated Voltage (VDC)
額定電壓
Operating Voltage (VDC)
工作電壓
Current Consumption (mA)
消耗電流
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
LF-MB16A12
12
10~15
30max
85dB min.
2,200  400
- 20~+70
2.0gms.
Magnetic Buzzer
LF-MB22B24
LF-MB22B24
(dB)
(mA)
(VDC)
LF-MB23B12-A
LF-MB23B12-A
(dB)
(mA)
(VDC)
Part No.
型
號
Rated Voltage (VDC)
額定電壓
Operating Voltage (VDC)
工作電壓
Current Consumption (mA)
消耗電流
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
LF-MB22B24
LF-MB23B12-A
24
12
20~26
8~16
35 max
30 max
85dB min.
85dB min.
400  100
400  100
- 20 ~ + 60
- 25 ~ + 60
10g
10g
Magnetic Buzzer
LF-MB26B06
LF-MB26B12
LF-MB26B24
LF-MB26B12
LF-MB26B06
(dB)
(mA)
(dB)
(VDC)
Part No.
型
號
Rated Voltage (VDC)
額定電壓
Operating Voltage (VDC)
工作電壓
Current Consumption (mA)
消耗電流
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
LF-MB26B24
(mA)
(dB)
(mA)
(VDC)
(VDC)
LF-MB26B06
LF-MB26B12
LF-MB26B24
6
12
24
4~8
8~16
20~28
40 max
40 max
40 max
85dB min.
85dB min.
85dB min.
400  100
400  100
400  100
- 20 ~ + 60
- 20 ~ + 60
- 20 ~ + 60
12g
12g
12g
Magnetic Transducer
LF-MT05A03
（SMD Package）
Non-washable
Reflow
LF-MT05B01
（SMD Package）
Non-washable
Reflow
LF-MT05A03
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Win Trust Through Quality
LF-MT05B01
LF-MT05A03
LF-MT05B01
3
3
2～4
2～4
100 max
100 max
75dB min.
75dB min.
4,000
4,000
-30～+70
-30～+70
Magnetic Transducer
LF-MT08SB36
（SMD Package）
LF-MT08SB6
（SMD Package）
LF-MT08SB36
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
LF-MT08SB6
LF-MT08SB36
LF-MT08SB6
3.6
5
2.5～4
4～6
100 max
80 max
16±3
30±5
85dB min. /at 10 cm
85dB min. /at 10 cm
2,700
2,700
-30～+70
-20～+60
0.5gms.
0.5gms.
Magnetic Transducer
LF-MT09A01、LF-MT09A02、LF-MT09A03
LF-MT09A01
LF-MT09A02
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
LF-MT09A03
LF-MT09A01
LF-MT09A02
LF-MT09A03
1.5
3
5
1～2
2～5
3～8
80 max
70 max
80 max
5.5±2
25±4
40±4
80dB min.
80dB min.
80dB min.
2,731
2,731
2,730
-20～+60
-20～+70
-20～+70
1.0gms.
1.0gms.
1.0gms.
Magnetic Transducer
LF-MT09B01、LF-MT09B02、LF-MT09B03
LF-MT09B01
LF-MT09B02
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
LF-MT09B03
LF-MT09B01
LF-MT09B02
LF-MT09B03
1.5
3
5
1～2
2～4
4～6
80 max
70 max
80 max
5.5±1
25±4
40±4
80dB min.
85dB min.
85dB min.
2,730
2,731
2,731
-20～+60
-20～+60
-20～+60
1.0gms.
1.0gms.
1.0gms.
Magnetic Transducer
LF-MT09C01、LF-MT09C02、LF-MT09C03
LF-MT09C01
LF-MT09C02
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
LF-MT09C03
LF-MT09C01
LF-MT09C02
LF-MT09C03
1.5
3
5
1～2
2～4
4～6
80 max
70 max
70 max
5.0±2
25±2
40±4
80dB min.
80dB min.
85dB min.
2,730
2,730
2,730
-20～+60
-20～+60
-20～+70
1.0gms.
1.0gms.
1.0gms.
Magnetic Transducer
LF-MT09D01、LF-MT09D02、LF-MT09D03
LF-MT09D01
LF-MT09D02
Part No.
重
量
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
LF-MT09D03
LF-MT09D01
LF-MT09D02
LF-MT09D03
1.5
3
5
1～2
2～4
4～6
80 max
80 max
100 max
5.5±2
25±2
40±6
80dB min.
83dB min.
85dB min.
2,730
2,730
2,730
-20～+60
-20～+60
-20～+60
0.9gms.
0.9gms.
0.9gms.
Magnetic Transducer
LF-MT09E01、LF-MT09E02、LF-MT09E03
LF-MT09E01
LF-MT09E02
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
LF-MT09E03
LF-MT09E01
LF-MT09E02
LF-MT09E03
1.5
3
5
1～2
2～5
3～7
80 max
80 max
80 max
5.5±6
27±4
47±5
80dB min.
85dB min.
85dB min.
2,730
2,730
2,730
-20～+60
-20～+60
-20～+60
0.5gms.
0.5gms.
0.5gms.
Magnetic Transducer
LF-MT12A01、LF-MT12A02、LF-MT12A03
LF-MT12A01
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
Win Trust Through Quality
LF-MT12A02
LF-MT12A03
LF-MT12A01
LF-MT12A02
LF-MT12A03
1.5
1.5
1.5
1～3
1～3
1～3
30 max
15 max
60 max
16±4.5
42±6
8±1
85dB min.
80dB min.
80dB min.
2,048
2,048
2,048
-20～+70
-20～+70
-30～+70
2.0gms.
2.0gms.
2.0gms.
Magnetic Transducer
LF-MT12A04、LF-MT12A05、LF-MT12A08
LF-MT12A04
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
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LF-MT12A05
LF-MT12A08
LF-MT12A04
LF-MT12A05
LF-MT12A08
1.5
3.6
5
1～2
2～5
1～6
12 max
80 max
40 max
50±7.5
16±4
42±4
80dB min.
85dB min.
88dB min.
2,048
2,048
2,048
-20～+70
-20～+70
-20～+70
2.0gms.
2.0gms.
2.0gms.
Magnetic Transducer
LF-MT12B01、LF-MT12B02、LF-MT12B03
LF-MT12B01
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
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LF-MT12B02
LF-MT12B03
LF-MT12B01
LF-MT12B02
LF-MT12B03
1.5
1.5
1.5
1~2
1~2
1~2
30max
70max
10max
15 4.5
6.5  1
42 6
80dB min.
85dB min.
70dB min.
2,048
2,731
2,048
- 20~ + 70
- 20~ + 70
- 20 ~ + 70
2.0gms.
2.0gms.
2.0gms.
Magnetic Transducer
LF-MT12B04
LF-MT12B04、LF-MT12B05
LF-MT12B05
LF-MT12B09
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
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LF-MT12B09
LF-MT12B04
LF-MT12B05
LF-MT12B09
1.5
1.5
12
1~2
1~2
6~15
80max
80max
40max
6.5  1
6.5  1
115 10
85dB min.
85dB min.
88dB min.
2,730
2,730
2,730
- 20~ + 70
- 20~ + 70
- 20~ + 70
2.0gms.
2.0gms.
2.0gms.
Magnetic Transducer
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Magnetic Transducer
LF-MT12C01、LF-MT12C02、LF-MT12C08
LF-MT12C01
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
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LF-MT12C02
LF-MT12C08
LF-MT12C01
LF-MT12C02
LF-MT12C08
1.5
1.5
12
1~3
1~3
8~15
30max
15max
70max
15 2
42  6
85 5
75dB min.
70dB min.
75dB min.
2,048
2,048
2,048
- 20~ + 70
- 20~ + 70
- 20 ~ + 70
2.0gms.
2.0gms.
2.0gms.
Magnetic Transducer
LF-MT12C09
LF-MT12C09
LF-MT12C09-A
LF-MT12C09-A
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
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LF-MT12C09
LF-MT12C09-A
3.3
5
2~5
4~7
40max
50max
40  3
40  3
70dB min.
75dB min.
2,048
2,048
- 20~ + 70
- 25~ + 70
2.0gms.
2.0gms
Magnetic Transducer
LF-MT12D01、LF-MT12D02、LF-MT12D03
LF-MT12E02
LF-MT12D01
LF-MT12D02
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
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LF-MT12D03
LF-MT12E02
LF-MT12D01
LF-MT12D02
LF-MT12D03
LF-MT12E02
1.5
5
12
5
1～2
3～8
6～15
3～8
70 max
40 max
40 max
50 max
16±4.5
47±5.2
140±14
40±6
80dB min.
85dB min.
85dB min.
85dB min.
2,400
2,400
2,400
2,300
-20～+70
-20～+75
-20～+70
-20～+70
2.0gms.
2.0gms.
2.0gms.
2.0gms.
Magnetic Transducer
LF-MT13T02、LF-MT13T03
（SMD Package）
Non-washable
Reflow
LF-MT13T05、LF-MT13T06
（SMD Package）
Non-washable
Reflow
LF-MT13T02
LF-MT13T03
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
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LF-MT13T05
LF-MT13T06
LF-MT13T02
LF-MT13T03
LF-MT13T05
LF-MT13T06
5
12
5
12
4～7
8～16
4～7
8～16
40 max
40 max
40 max
40 max
45±5
140±14
45±5
140±14
87dB min.
87dB min.
85dB min.
85dB min.
2,400
2,400
2,400
2,400
-30～+85
-30～+85
-30～+85
-30～+85
2.5gms.
2.5gms.
2.5gms.
2.5gms.
Magnetic Transducer
LF-MT16A01、LF-MT16A02、LF-MT16A03
LF-MT16A01
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
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LF-MT16A02
LF-MT16A03
LF-MT16A01
LF-MT16A02
LF-MT16A03
1.5
6
12
1～3
4～8
9～15
12 max
40 max
40 max
27±4
50±7
115±7
80dB min.
85dB min.
85dB min.
2,048
2,048
2,048
-25～+70
-25～+70
-25～+70
2.0gms.
2.0gms.
2.0gms.
Magnetic Transducer
LF-MT25A01、LF-MT25A02、LF-MT25A03
LF-MT25A01
Part No.
型
號
Rated Voltage (Vo-p)
額定電壓
Operating Voltage (Vo-p)
工作電壓
Current Consumption (mA)
消耗電流
Coil Resistance (Ω)
直流阻抗
Sound Pressure Level at 10cm
輸出音壓
Resonant Frequency (Hz)
諧振頻率
Operating Temperature (℃)
工作溫度
Weight
重
量
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LF-MT25A02
LF-MT25A03
LF-MT25A01
LF-MT25A02
LF-MT25A03
5
6
12
3～7
3～8
8～14
80 max
70 max
55 max
27±4
36±6
126±12
85dB min.
85dB min.
85dB min.
730
1,000
1,000～1,500
-25～+70
-20～+70
-40～+85
10.0gms.
10.0gms.
10.0gms.
Microphone Kit
LF-MS01BA3
LF-MM127AE2-A
Mic spec
Mic spec
Dimension/尺 寸 ：Ø 6.0 × 5.2mm
Dimension/尺 寸 ：Ø 9.7 × 5.0mm
Directional/指向性：Omni-directional
Directional/指向性：Unidirectional
Sensitivity/靈敏度：-40 ± 2dB (finished product)
At 3V, 2.2Kohm, 0dB=1V/Pa 1KHz
Sensitivity/靈敏度：-36 ± 5dB (finished product)
At 3V, 2.2Kohm, 0dB=1V/Pa 1KHz
Frequency/頻 率 ：70 ~ 14,000Hz
Frequency/頻 率 ：100 ~ 10,000Hz
Plug： Ø 3.5mm, L shape plug.
Plug： Ø 2.5mm, mono straight shape plug.
.
LF-MM055A2
LF-MM128AF2
Mic spec
Mic Spec
Dimension/尺 寸 ：Ø 9.7 × 5.0mm
Dimension/尺 寸 ：Ø 6.0 × 5.2mm
Directional/指向性：Uni-directional
Directional/指 向 性：Omni-directional
Sensitivity/靈敏度：-38 ± 5dB (finished product)
At 3V, 2.2Kohm, 0dB=1V/Pa 1KHz
Sensitivity/靈敏度：-38 ± 5dB (finished product)
At 3V, 2.2Kohm, 0dB=1V/Pa 1KHz
Frequency/頻 率 ：70 ~ 14,000Hz
Frequency/頻 率 ：70 ~ 14,000Hz
Plug： Ø 3.5mm, L shape plug.
Plug:：Ø 2.5mm, mono L shape plug.
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Stereo Earphone
LF-HSC257A8
Dimension：12Φ
Impedance：16Ω 、32Ω
Plug：2.5Φ 、3.5Φ
Pole：3pole、4pole
LF-HSC258A8
Dimension：12Φ
Impedance：16Ω 、32Ω
Plug：2.5Φ 、3.5Φ
Pole：3pole、4pole
LF-HSD1601A
Dimension：16Φ
Impedance：16Ω 、32Ω
Plug：2.5Φ 、3.5Φ
Pole：3pole、4pole
Customer design is welcome
Plug type：
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Construction of Magnetic Buzzer
Construction of Magnetic Buzzer
Operation principles and construction
These types of electro magnetic transducer（as Fig.1）contain coils which are would in
such a manner to produce L1 for driving, and L2 for feedback purpose（as shown in Fig.2）.
When current flows through coil L1 and the diaphragm begins to vibrate, coil L2 detects
Its vibration, providing feedback to the base of the transistor so that the oscillation becomes
synchronized with the vibration of the diaphragm.
Fig.1 Cross Section
Fig.2 Circuit diagram of MB12B series
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No.
Description
1
Masking Label
2
Housing
3
Magnet piece
4
Diaphragm
5
Plastic magnet
6
Washer
7
Coil
8
Yoke
9
Base
10
P.C. Board
11
Electronic parts
12
Potting material
13
- Pin
14
+ Pin
Construction of Magnetic Transducer
Construction of Magnetic Transducer
With reference to the below drawing which shows the condition of MT12 type magnetic
transducer, the operation principle of MT miniature sound transducers can be explained as:
As shown in the drawing, the metal vibrating disk Located in between two covers
oscillates and makes sound by the magnetic field, which attracts the vibrating disk being
affected by the imposed magnetic flux.
This movement is generated by the current through the coil which is located in the
magnetic circuits consisting if permanent and iron core.
Construction of MT12 type
No.
Description
1
Cavity
2
Cover housing
3
Vibrating weight
4
Vibrating disk
5
Pole
6
Magnet
7
Magnet holder
8
Housing
9
Coil
10
Yoke plate
11
P.C. Board
12
Pin long
13
Pin short
Basic Point for Adequate Uses
1.Frequency Characteristics
Standard driving circuit for transducer
Magnetic transducer is driven by an input frequency.
The given frequency characteristics can be obtained
Only when applying square wave（V0-p）.
The end-users must know the facts that the
characteristics of frequency may be quite changed in
different shapes with the applied various waves. Like
sine wave, square wave （V0-p）or the wavers.
2.Rated Voltage
When other voltage is applied than our
recommended one, the characteristics of frequency
will be also changed. To have best performance, the
recommended voltage had better be used always.
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The Technology and Operation of Piezo Sounder
The Technology and Operation of Piezo Sounder
Basic Principles
Impedance Characteristics
Mounting
A piezoelectric ceramic element is
a sintered body of many crystals
(Poly-crystals).Distortion of this
Crystal occurs when a stress is
applied to the element, either
thermally,
mechanically
or
electrically. These distortions
create many possible uses
including alarm and sensor
applications.
The equivalent
circuit
for
piezoelectric elements is shown in
Fig.3. The mechanical resonance
of the element is show by R, L, C
where L and C determine the
Resonant frequency (Fig.3).
(1) Node support
The sound element shown in
Fig.2 (a) is node mounted,
allowing it to vibrate in a free state.
The node, a circumference where
no vibration takes place, is
created as shown by the broken
line Fig. 1.
1
Fo=
2π
L1C1
Mounting at the node causes the
Because the shunt capacitor is
least mechanical suppression of
larger than the series combination vibration, thus allowing the
In using piezoelectric elements in the total impedance is capacitive.
greatest amplitude. Hence this
audible output an application, a
mounting method, as illustrated in
metal plate is attached to the
Modes of vibration and
Figure 5(a), gives the highest
ceramic element because the
supporting
methods
for
the
sound pressure output and the
resonant frequency of the ceramic
sound
element
most stable stable oscillation
is too high to produce an audible
tone by itself. This metal plate Three principal modes of vibration frequency of the three choices. As
vibrates as shown in Fig.1 due to can be created in the element a result, this is the most
the contraction and expansion of depending on the style of appropriate design for high output,
the Piezo ceramic, and an audible mounting. This is illustrated in self-drive applications.
signal is produced.
Fig.2.
Fig.3.
Fig. 1.
Bending Vibration Node
Fig. 2.
Vibrating Mode of Piezo sounder
Fig. 4.
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The Technology and Operation of Piezo Sounder
(2) Edge support
Fig. 2(b) shows the mode of
vibration when the sound element
is supported at the edges. In this
mounting configuration, the whole
sound plate vibrates up and down
as is illustrated by the broken line
in the diagram. Hence, the edge
method as illustrated in fig.5(b),
suppresses the fundamental
resonant frequency by moving the
node. This offers the possibility of
a wide frequency response, and
is most advantageously used with
external drive.
(3) Center Support
Circuit design considerations Frequency of between 500Hz and
4KHz should be used, as
1. Driving Wave
The Piezo elements may be
driven by sinusoidal, pulsed, or
square wave, depending upon the
particular application. If a sine
wave is used, the device will
operate at a frequency lower than
the resonant frequency (Fo) with
a lower sound pressure level. The
reason for this is the loss of
energy, through the time lag
between peak Deflections as
shown in Fig. 7. It is important that
a clean sinusoidal signal be
provided, as any clipping of the
waveform can result in frequency
instability. If square waves or
pulsed waves are used to drive
the elements, a higher acoustic
output will be realized, along with
an increase in harmonic levels. A
parallel capacitor can reduce
these harmonics.
Fig.2(c) shows the mode of
vibration when the sound element
is supported at the center. As the
main vibration area is forcefully
supported, large sound pressure
levels are not possible when this
method is used. This too is
appropriate for external drive but 2. Driving Frequency
due to design difficulties center For maximum output, a
support is not useful as and
alarm.
recommended by the specific part
chosen.
3. DC Precaution
In order to prevent depolarization
of the ceramic elements it is
necessary that every precaution
be taken to prevent them from
being subjected to direct current.
4. High voltage Precautions
Voltage higher
than those
recommended by specification
can damaged the ceramic, even if
applied for short durations. Due to
the strength of the piezoelectric
effect, high voltage can cause the
crystals to break the sintered
bonds, resulting impermanent
damage.
Significantly higher
sound pressure levels will not be
achieved by voltages higher than
those
recommended
by
specification.
Fig. 5. Oscillation System of Pizo Buzzer and Sounder
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The Technology and Operation of Piezo Sounder
5.Booster coil Applications： resonating
When using a booster coil, do not
exceed voltage
recommendations, as the coil will
heat up, passing too much current
to the transistor.
6.Shock：
Mechanical impact on buzzers or
elements can generate high
voltages that can seriously harm
drive circuitry. Suitable diode
protection is advisable in
applications where mechanical
shock is possible. Zener diode
shown as Figure 7a; Schottky
diode shown as Figure 7b.
7.Mounting Glue：
Proper application of mounting
glue is necessary to produce
adequate sound pressure levels.
8.Design of resonating
Case：
When an element is supported
and has no case, the sound
pressure level is small. This is
because the acoustical
impedance of the elements does
not match that of any open air
loading. However, by building a
Case, the acoustical impedance
of the acoustical impedance of
the element
and encased air can be matched.
This case can be designed using
the following (Helmholtz’s
equation）
132.064D2
C=
t pF
D=diameter of electrode (cm)
t=Thickness of ceramic (cm)
10.Soldering Recommendations
The desired location for soldering
lead wires on an element is the
point nearest to edge of the silver
C
Fo=
4a2
surface. The desired location for
2π
2
soldering a lead to the metal plate
d h( t+ ka )
fo=Resonant frequency of Cavity (Hz) is the area between the end of the
plate and the end of the ceramic.
c=Sound velocity 34.4*103
Below are the conditions for
cm/sec@24℃
a=Radius of sound emitting hole (cm) soldering.
d=Diameter of support
Ceramic
Metal
h=height of cavity (cm)
(AG)
plate
t=Thickness of cavity
k=Constant ≒1.3
Soldering
25W
25W
Iron
330℃±30℃
Temp.
9.Electrostatic Capacitance
It is necessary to match the
output impedance of the oscillator
with the transducer impedance in
order to get maximum sound
pressure level from the transducer.
The actual electrostatic
capacitance can be calculated
from the following formula.
Time
0.5sec
Max.
Solder
Fig.7 (a).
Fig. 6.
Fig. 7(b).
Fig. 8
(a) Edge Mount
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(b) Node Mount
2～4 sec.
As solder
The Technology and Operation of Piezo Sounder
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Recommend Circuit for Piezo Sounder
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