9MM Small Black SMD Magnetic Buzzers 1.5 Volt ( External Drive Type )
Quick Detail:
- Size: L5mm*W5mm*H1.6mm
- SPL: Min.80dB at 10cm Input4KHz/3Vo-p 1/2 Duty Square Wave
- Coil Resistance: 12+/-1 ohm
- Operating Voltage: 1-5Vo-p
- Rated Current: Max.90mA Input 4KHz/3Vo-p 1/2 Duty Square Wave
Measuring condition Part shall be measured under a condition (Temperature: 535, 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. |
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1 |
Rated Voltage |
3.0 Vo-p |
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2 |
Operating Voltage |
2.04.0 Vo-p |
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3 |
Rated Current |
Max.100mA ,at 4000Hz 50% duty Square Wave 3.0Vo-p |
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4 |
Sound Output at 10cm |
Min. 78dB (Typ.80dB), at 4000Hz 50% duty Square Wave 3.0Vo-p |
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5 |
Coil Resistance |
12±3Ω |
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6 |
Resonant Frequency |
4000Hz |
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7 |
Operating Temperature |
-30+70 |
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8 |
Store Temperature |
-40+85 |
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9 |
Net Weight |
Approx 0.1g |
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10 |
RoHS |
Yes |
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Unit: mm |
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*Unit: mm; Tolerance: ±0.3mm Except Specified *Housing Material: Black LCP Top(Brass) *Terminal plate: 3 soldering pads, tin Plating Brass
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Recommended Driving Circuit
Resonant frequency, 1/2 duty cycle. Square wave. Signal amplitude should be large enough tosaturate the transistor.
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Recommended Setting
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4.
Frequency Response
3.0Vo-p 50% duty Square wave,10cm
5 Surface mounting condition 5.1 Reflow soldering Recommendable reflow soldering condition is as follows.
Note: (1) 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. (2) In the reflow soldering, too high soldering temperatures and too large temperature Gradient such as rapid heating or cooling may cause electrical failures and mechanical damages of the devices. |
5.2 Soldering pattern
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