Buzzer BM1275E-0327-16

常州富鸿达电子有限公司成立于2010年，生产蜂鸣器，喇叭，报警器，咪头等电声器件，是一家集研发、生产、销售一体的企业。

类别：

Electromagnetic passive buzzer

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产品详情

1. Technical Parameter
Measuring condition
Part shall be measured under a condition (Temperature: 5~35℃, Humidity: 45%~85%R.H., Atmospheric pressure: 860 ~1060hPa) unless the standard condition (Temperature: 25±3℃, Humidity: 60±10%R.H. Atmospheric pressure: 860 ~1060hPa) is regulated to measure.

1	Rated Voltage	3Vo-p
2	Operating Voltage	2-5Vo-p
3	Rated Current	Max.80mA ,at 2731Hz 50% duty Square Wave 3Vo-p
4	Sound Output at 10cm	Min. 85dB,at 2731Hz 50% duty Square Wave 3Vo-p
5	Coil Resistance	16±4Ω
6	Resonant Frequency	2731Hz
7	Operating Temperature	-20℃~+70℃
8	Store Temperature	-30℃~+80℃
9	Net Weight	Approx 1.4g
10	RoHS	Yes

2. Dimensions Unit: mm

*Unit: mm; Tolerance: ±0.5mm Except Specified

3. Electrical And Acoustical Measuring Condition

Recommended Driving Circuit

Resonant frequency, 1/2 duty cycle. Square wave.Signal amplitude should be large enough tosaturate the transistor.

Recommended Setting

4.Frequency Response

3Vo-p 50% duty Square wave,10cm

5.Reliability Test

After any following tests the part shall meet specifications without any degradation in appearance and performance except SPL. SPL shall not deviate more than -10 dB from the initial value
a)Ordinary Temperature Life Test
The part shall be subjected to 96 hours at 25±10℃. Input rated voltage
Resonant frequency, 1/2 duty Square wave.
B )High Temperature Test
The part shall be capable of with standing a storage temperature of +80℃ for 96 hours.
c)Low Temperature Test
The part shall be capable of with standing a storage temperature of -30℃ for 96 hours.
d)Humidity Test
Temperature:+40℃±3℃ Relative Humidity:90%~95% Duration: 48 hours and expose to room temperature for 6 hours
e)Temperature Shock Test
Temperature:70℃ /1hour→ 25℃/3hours→-30℃/1hour→ 25℃/3hours (1cycle)
Total cycle: 10 cycles
f)Drop Test
Standard Packaging From 75cm(Drop on hard wood or board of 5cm thick, three sides, six plain.)
g)Vibration Test Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axis

Note:
As this product is not protected from foreign material entering, please make sure that any foreign materials (e.g. magnetic powder, washing solvent, flux, corrosive gas) do not enter this product in your production processes. the functional degradation (e.g. spl down) may occur if foreign material enter it.

6.Recommended the wave soldering temperature