5V Active Buzzer Module – Sound Alarm Module for Arduino and Embedded Projects

The 5V Active Buzzer Module is a compact and easy-to-use sound-generating device designed for use in embedded systems, DIY electronics, and Arduino projects. Unlike a passive buzzer, this active buzzer includes an internal oscillating circuit, allowing it to produce a continuous tone when powered – no need for PWM or external frequency generation.

Simply apply 5V DC to the module, and it emits a clear audible tone, ideal for alarms, timers, notifications, and alert systems in electronics projects. It features a standard 3-pin interface (VCC, GND, Signal), making it compatible with Arduino, ESP32, STM32, and other microcontrollers.

Key Features

Built-in oscillation circuit (no external frequency required)
Easy to use: produces sound when 5V is applied
Ideal for sound alerts, alarms, and indicators
Standard 3-pin interface (VCC, GND, Signal)
Compact and breadboard-friendly design
Compatible with Arduino, ESP8266, ESP32, STM32, Raspberry Pi, etc.

Product Specifications

Feature	Specification
Buzzer Type	Active (self-driving)
Operating Voltage	5V DC
Operating Current	≤ 30mA
Sound Output	~85dB at 10cm
Frequency	Fixed tone (~2.5kHz)
Interface	VCC, GND, Signal (Digital HIGH to trigger)
Mounting Style	PCB module / Breadboard compatible
Dimensions	~22mm x 15mm (may vary by module)
Compatible Platforms	Arduino, ESP32, Raspberry Pi, etc.