Buzzer (Active & Passive)
Output Component
Part Number / SKU: 5V Buzzer Module / Piezo Buzzer
📋 Technical Specifications
Type: Active & Passive Buzzer
Operating Voltage: 3V – 12V
Typical Voltage: 5V
Current Consumption: 10–30mA
Sound Output: ~70–90 dB
Type: Piezoelectric
Polarity: Positive (+) / Negative (–)
Mounting: Through Hole / Module
🔹 Buzzer क्या है?
Buzzer एक electronic component है जो electricity मिलने पर sound (बीप आवाज) देता है।
🔹 Types of Buzzer
👉 1. Active Buzzer
Direct power देने पर खुद sound करता है
Internal oscillator होता है
✔️ Easy to use
👉 2. Passive Buzzer
Direct sound नहीं करता
External signal (PWM / frequency) देना पड़ता है
✔️ Advanced projects में use
🔹 पहचान कैसे करें?
Active → simple connect करो → आवाज आएगी
Passive → Arduino / signal के बिना आवाज नहीं
🔹 Polarity
(long pin या marked) → Positive
– → Negative
🔹 Voltage & Current
Working Voltage → 3V – 12V
Best → 5V
Current → ~20mA
🔹 कैसे use करें?
👉 Direct battery से (Active buzzer)
battery → buzzer +
– battery → buzzer –
👉 Transistor के साथ (recommended)
sensor → transistor → buzzer ON
🔹 कहाँ use होता है?
Water Level Alarm
Door Alarm
Security System
Timer circuits
School projects
🔹 Important Tips
Active buzzer beginner के लिए best
Passive buzzer music / tone बनाने के लिए
हमेशा सही voltage दें
🔹 What is a Buzzer?
A buzzer is an electronic component that produces sound when powered.
🔹 Types of Buzzer
👉 Active Buzzer
Produces sound when power is applied
Has internal oscillator
✔️ Easy to use
👉 Passive Buzzer
Requires external signal to generate sound
✔️ Used in advanced circuits
🔹 Identification
Active → sound on direct power
Passive → needs signal
🔹 Polarity
Positive (+)
Negative (–)
🔹 Voltage & Current
Voltage → 3V to 12V
Typical → 5V
Current → ~20mA
🔹 Usage
Alarm systems
Water level alarm
Arduino projects
DIY electronics
🔹 Tips
Use active buzzer for simple projects
Passive for tone/music
Always use proper voltage