Active buzzers have an internal oscillator which generates a waveform to drive the transducer inside the buzzer. They operate at a preset frequency and are only able to produce a single tone. All you need to do is apply a DC voltage within the operating voltage range of the buzzer and voila, let there be sound.
Features / Specs
- Part No: TMB-12A05
- Rated Voltage: 5VDC
- Operating Voltage Range: 4 ~ 7VDC
- Rated Current: ≤ 30mA
- Resonant Frequency: 2.3kHz ±500Hz
- Minimum Sound Output: 85Db @ 10cm
- Operating Temperature: -20°C to +60°C
- Dimensions: 12mm Diameter, 9.5mm Height