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Overview
The TMB09A03 3V DC Active Buzzer is a compact electromagnetic buzzer that delivers clear, audible alerts with low power consumption. Its small form factor (9mm diameter, 5.5mm height) makes it ideal for integration into various small electronic devices such as alarms, timers, and status indicators.
With a working voltage of 3V and a current draw of just 30mA, this buzzer ensures efficient operation. Constructed from durable black PBT material, it provides long-term reliability and stable performance.
Specification
| Specification | Details |
|---|---|
| Model | TMB09A03 |
| Product Dimensions | 9 × 5.5 mm |
| Operating Voltage | 3V DC |
| Rated Current | 30 mA |
| Resonant Frequency | 2700 ± 200 Hz |
| Pin Pitch | 5.5 mm |
| Housing Material | Black PBT |
| Sound Pressure Level | ~85 dB at 10 cm, 3V, 25°C |
| Sound Hole Diameter | Ø1.65 mm |
| Polarity | Positive marked (+) |
| Recommended Input Signal | 3Vp-p, 50% duty square wave |
Pinout
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