Product Overview
This module features a built-in passive buzzer mounted on a compact PCB with a 2-pin header interface. Unlike active buzzers, it does not generate sound on its own—it requires an external signal (PWM or frequency input) to produce sound.
 
This makes it ideal for applications where custom tones, melodies, and frequency control are required in electronic projects.
 
Key Features
Passive Buzzer (Externally Driven)
Supports PWM / Frequency Control
Custom Tone Generation Capability
2-Pin Header Interface (2.54mm pitch)
Clear Polarity Marking (+ / -)
Compact & Breadboard Friendly
 
Working Principle
Apply a PWM or square wave signal across the + and – pins
The buzzer vibrates according to the input frequency
Different frequencies produce different tones
 
Use Cases
Melody generation 
Arduino buzzer projects
IoT sound alerts with custom tones
Educational experiments (frequency vs sound)
Game sound effects
Alarm systems with variable tones
 
Advantages
Full control over sound frequency
Can generate music and tones
More flexible than active buzzers
Ideal for learning and advanced projects
 
Package Includes
1 × Passive Buzzer Module (2-Pin)
1 x 2 Pin Header(unsoldered)
 
Notes:
Requires PWM / signal input to operate
No sound on direct DC supply
Ensure correct polarity (+ / -)
Avoid over-voltage (>5V typical)
 
Weight = 2 grams
Dimensions = 1.5 cm x 1.2 cm x 1.2 cm