30MM Self Drive Black Piezo Electronic Buzzer ABS , 1/2 Duty Square Wave
- Size: D30mm*H20mm
- SPL: Min.90dB at 2.8KHz/12VDC 1/2 Duty Square Wave/10cm
- Operating Voltage: 5-15VDC
- Piezo Buzzer with build-in oscillating
- Piezo Buzzer
- 12V Buzzer
- 30mm Piezo Buzzer
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.
5 ? 15VDC
Max.30mA, at 12VDC
Sound Output at 30cm
Min.90dB, at 12VDC
-20 - +70℃
-30 - +80℃
Approx 7 g
*Housing Material: Black ABS
3. 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
(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.
(2)High Temperature Test
The part shall be capable of with standing a storage temperature of +80℃ for 96 hours.
(3)Low Temperature Test
The part shall be capable of with standing a storage temperature of -30℃ for 96 hours.
Temperature:+40℃±3℃ Relative Humidity:90%～95% Duration: 48 hours
and expose to room temperature for 6 hours
(5)Temperature Shock Test
Temperature:70℃ /1hour→ 25℃/3hours→-30℃/1hour→ 25℃/3hours (1cycle)
Total cycle: 10 cycles
Standard Packaging From 75mm(Drop on hard wood or board of 5cm thick,
three sides, six plain.)
Vibration:1000cycles /min. Amplitude:1.5mm, Duration: 1 hour in each 3 axes
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
4.Electrical And Acoustical Measuring Condition
Recommended Test Circuit