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Help Center9.0x4.5MM Mini SMT Electro Magnetic Buzzer 1.5V External Drive
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Certification:ISO9001 TS16949
9.0x4.5MM Mini SMT Electro Magnetic Buzzer 1.5V External Drive
Quick Detail:
Size: D9.0mm*H4.5mm SPL: Min.85dB at 10cm Input 2730Hz/1.5Vo-p 1/2 Duty Square Wave Coil Resistance: 5.51 ohm Operating Voltage: 1-2.5Vo-p Rated Current: Max.90mA Input 2730Hz/1.5Vo-p 1/2 Duty Square WaveDescription:
buzzer SMD Electro-Magnetic Buzzer SMD Electro-Magnetic Element 1.5V Buzzer small BuzzerSpecification:
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 |
1.5 Vo-p |
|
2 |
Operating Voltage |
1～2.5 Vo-p |
|
3 |
Rated Current |
Max.90mA ,at 2730Hz 50% duty Square Wave 1.5Vo-p |
|
4 |
Sound Output at 10cm |
Min. 85dB,at 2730Hz 50% duty Square Wave 1.5Vo-p |
|
5 |
Coil Resistance |
5.5±1Ω |
|
6 |
Resonant Frequency |
2730Hz |
|
7 |
Operating Temperature |
-20℃～+70℃ |
|
8 |
Store Temperature |
-30℃～+80℃ |
|
9 |
Net Weight |
Approx 1g |
|
10 |
RoHS |
Yes |
*Unit: mm; Tolerance: ±0.5mm Except Specified
*Housing Material: Black PPS
*Terminal plate: 2 soldering pads, Gold Plating Brass
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
Surface mounting condition
(1)Reflow soldering
Note:
In automated mounting of the SMD sound transducers on PCB, any bending, expanding and pulling forces or shocks against the SMD sound transducers shall be kept minimum to prevent them from electrical failures and mechanical damages of the devices. In the reflow soldering, too high soldering temperatures and too large temperatur Gradient such as rapid heating or cooling may cause electrical failures and mechanical damages of the devices(2)Soldering pattern
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
Test Resonant frequency, 1/2 duty Square wave.
(2)High Temperature
The part shall be capable of with standing a storage temperature of +85℃ for 96 hours.
(3)Low Temperature Test
The part shall be capable of with standing a storage temperature of -40℃ for 96 hours.
(4)Humidity Test
Temperature:+40℃±3℃ Relative Humidity:90%～95% Duration: 48 hours
and expose to room temperature for 6 hours
Temperature Shock Test
Temperature:60℃ /1hour→ 25℃/3hours→-20℃/1hour→ 25℃/3hours (1cycle)
Total cycle: 10 cycles
(5)Drop Test
Standard Packaging From 75cm(Drop on hard wood or board of 5cm thick,
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