Name: 3V Active Buzzer
SKU: 4143
Availability: InStock

3V Active Buzzer – Compact Sound Alarm Module for Low-Voltage Electronics Projects

The 3V Active Buzzer is a miniature sound-emitting device designed to operate at low voltages, making it ideal for portable, battery-powered electronics and microcontroller-based projects. With a built-in oscillation circuit, this active buzzer produces a steady tone when supplied with 3V DC—no need for external frequency generation or PWM signals.

Compact and lightweight, it is perfect for applications requiring simple audio feedback such as alarms, button clicks, and notifications in Arduino, ESP32, and other 3.3V logic systems.

Key Features

Self-driven active buzzer (no external signal required)
Operates directly from 3V DC supply
Low power consumption – ideal for battery-operated devices
Small form factor suitable for compact designs
Produces a clear and audible tone (typically ~80dB)
Compatible with 3.3V logic systems (Arduino, ESP8266, ESP32, etc.)

Product Specifications

Feature	Specification
Buzzer Type	Active (with internal oscillator)
Operating Voltage	3V DC
Operating Current	<10mA
Sound Output	~75–85 dB (at 10 cm)
Frequency	Fixed (~2.7kHz to 3kHz depending on model)
Dimensions	~7mm–12mm diameter x ~8mm height (varies)
Mounting Type	PCB mount or wire leads
Polarity Marked	Yes
Material	Plastic housing