Passive Buzzer module
The Passive Buzzer Module is a small audio device ideal for applications that need customizable sound output. Unlike active buzzers, this passive piezo version does not include a built-in oscillator and instead depends on an external signal—usually a square wave from a microcontroller such as an Arduino—to produce tones in the 2kHz to 5kHz range.
Features:
- Driving Circuit: Integrated 9012 PNP transistor used to drive the buzzer for efficient switching.
- Mounting: Includes fixing bolt holes for easy and secure installation.
Specifications:
- Working Voltage:3V to 5V
- Signal Requirement:2–5 kHz square wave input
- Interface Type:3-wire connection
- VCC:Power input (3.3V–5V)
- GND:Ground
- I/O:Control signal from microcontroller (PWM-capable pin recommended)
- PCB dimensions:3 cm x 1.3 cm
- Weight: 0.03kg