文章摘要:- PHOTO --- ITEM --SM802ASM802BSM802C--- SM802A -- SM802C ---RATED VOLTAGE-额定电压*3.7V OPERATING VOLTAGE-电压范围2.4V ~ 4.5V RATED CURRENT (max) 消耗电流max.90 mA COLI RESISTANCE--线圈阻抗16 ± 3 Ohms SOUND PRESSURE LEVEL(min)-输出音压*min.85dB RESONANT Frequency-谐振频率2,700 Hz OPERATING TEMPERATURE RAGE-操作温度-30
部分SMD 蜂鸣器系列参数,标签:元器件命名参数,http://www.88dzw.com
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PHOTO -----
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ITEM ------
SM802A
SM802B
SM802C
--- SM802A ---
--- SM802C ---
RATED VOLTAGE-额定电压*
3.7V
OPERATING VOLTAGE-电压范围
2.4V ~ 4.5V
RATED CURRENT (max) 消耗电流
max.90 mA
COLI RESISTANCE--线圈阻抗
16 ± 3 Ohms
SOUND PRESSURE LEVEL(min)-输出音压*
min.85dB
RESONANT Frequency-谐振频率
2,700 Hz
OPERATING TEMPERATURE RAGE-操作温度
-30℃ to 70℃
STORAGE TEMPERATURE RAGE-贮藏温度
-40℃ to 85℃
-*Duty 50% square wave --*The condition is take measurements (1) In the anechoIC.(2) At the distance of 10cm in front of sound output hole to the microphoneand (3) with the sound generator alone.
------ OUTLINE DRAWING --------
------ FREQUENCY CHARACTERISTICS ------
![](http://www.shbuzzer.com/newEbiz1/755shbuzzerres/filerepository/images/c373e9127a82e2878f6a464e858e75f2)
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PHOTO -----
------
ITEM ------
SM803A
SM803B
SM803C
--- SM803A ---
RATED VOLTAGE-额定电压*
3.0V
OPERATING VOLTAGE-电压范围
2.0V ~ 4.0V
RATED CURRENT (max) 消耗电流
max.80 mA
COLI RESISTANCE--线圈阻抗
20 ± 3 Ohms
SOUND PRESSURE LEVEL(min)-输出音压*
min.90dB
RESONANT FREQUENCY-谐振频率
2,700 Hz
OPERATING TEMPERATURE RAGE-操作温度
-30℃ to 70℃
STORAGE TEMPERATURE RAGE-贮藏温度
-40℃ to 85℃
-*Duty 50% square wave --*The condition is take measurements (1) In the anechoic.(2) At the distance of 10cm in front of sound output hole to the microphoneand (3) with the sound generator alone.
------ OUTLINE DRAWING -(UNIT:mm)-------
------ FREQUENCY CHARACTERISTICS ------
![](http://www.shbuzzer.com/newEbiz1/755shbuzzerres/filerepository/images/c373e9099cfdb6e78f6ac74e63059fe0)
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Tag:元器件的命名及常用参数,元器件命名参数,家电维修 - 元器件的命名及常用参数