Buzzer BP1770C

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.

2. Dimensions Unit: mm

*Unit: mm; Tolerance: ±0.5mm Except Specified
*Housing Material: Black PBT

4.Frequency Response


10Vp-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 -5 dB from the initial value
5.1 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.
5.2 High Temperature Test
The part shall be capable of with standing a storage temperature of +70℃ for 96 hours.
5. 3 Low Temperature Test
The part shall be capable of with standing a storage temperature of -30 ℃ for 96 hours.
5.4 Humidity Test
Temperature:+40 ℃ 3 ℃ Relative Humidity:90% ~ 95% Duration: 48 hours and expend to room temperature for 6 hours
5.5Temperature Shock Test
Temperature:60 ℃/1hour → 25 ℃/3hours →-20 ℃/1hour → 25 ℃/3hours (1cycle)
Total cycle: 10 cycles
5.6 Drop Test
Standard Packaging From 75cm(Drop on hard wood or board of 5cm thick, three sides, cycle
Amplitude: 243 plain.) Vibration: 1.5mm, Duration: 1 hour in each 3 axis

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.