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