Magnetic Buzzer 5:12V 12mm 2 Pin
🔔 Magnetic Buzzer 5–12V – 12mm, 2-Pin (Passive Type)
📝 Overview
This 12mm 2-pin Magnetic Buzzer is a passive buzzer designed for use in a wide range of electronics applications, including Arduino, alarms, and notification systems. It requires a square wave signal to produce sound, making it ideal for tone and melody generation in microcontroller projects.
⚙️ Key Features
Operating voltage: 5V to 12V DC
Small size (12mm diameter) – fits easily on PCBs
2-pin through-hole design for easy mounting
Passive type – requires external signal (e.g. from Arduino PWM)
Low current consumption
Produces audible tones from 2kHz–5kHz (based on input signal)
📦 Technical Specifications
| Parameter | Value |
|---|---|
| Type | Magnetic (Passive) Buzzer |
| Operating Voltage | 5V – 12V DC |
| Sound Output | Depends on input (typ. 85 dB @ 5V/2kHz) |
| Resonant Frequency | ~2.3kHz – 2.7kHz |
| Diameter | 12 mm |
| Height | ~9 mm |
| Mounting | 2-pin through-hole |
| Current Consumption | ~10–35 mA depending on VCC |
| Polarity | Long pin = Positive (+) |
🛠️ Usage
Connect positive pin to Arduino PWM pin
Generate square wave using tone() function or timer
Suitable for alarms, countdown timers, sound effects
🎯 Common Applications
Arduino projects (e.g. alarms, melodies)
Intruder alerts and security systems
Digital clocks and timers
Toys and interactive devices
✅ Resources
🎥 YouTube Tutorial https://youtu.be/gj-H_agfd6U?si=_Kf0VVRXh-9QT4J_
📚 Arduino Library: No external library required — use tone(pin, frequency) built-in function
🧰 How to Add: Built-in Arduino IDE support via tone() and noTone() functions