Active Buzzer Module

An Active Buzzer Module is a simple electronic component that generates a sound when powered. Unlike a passive buzzer, which requires an external frequency signal, an active buzzer has a built-in oscillator that produces a tone (typically 2kHz – 4kHz) when voltage is applied.

Features of an Active Buzzer Module

1. Operating Voltage – Usually 3V to 12V (5V common for Arduino & microcontrollers).
2. Built-in Oscillator – Generates a fixed tone without needing a PWM signal.
3. Two-Terminal Connection – VCC and GND for easy interfacing.
4. Compact & Low Power – Typically consumes 10mA – 30mA.
5. Simple ON/OFF Control – Controlled by a microcontroller, switch, or transistor.