5V passive Buzzer

The 5V passive Buzzer is a small sound component without a built-in oscillator. Instead of beeping on its own when powered, it makes sound only when you drive it with a changing signal, so you choose the pitch. That means it can play different tones, beeps and simple melodies from an Arduino, ESP32 or 555 timer circuit, which a fixed-tone active buzzer cannot do.

5V passive Buzzer Specifications

• Type: passive buzzer, no internal oscillator
• Rated voltage: 5 V
• Drive signal: square wave or PWM in the audio range
• Tone: set by the frequency you send, so one buzzer can play many notes
• Control: Arduino tone() function, a PWM pin or an oscillator circuit

5V passive Buzzer Applications

• Playing melodies and notes with the Arduino tone() function
• Alarm, timer and doorbell sounds with different tones
• Keypad and button feedback beeps
• Game and toy sound effects
• STEM lessons on sound and frequency

What's in the Box

• 1 × 5V passive buzzer

Tip: A passive buzzer stays silent on plain DC. Connect it to a digital pin and call tone(pin, 1000) for a 1 kHz beep; for a louder sound, drive it through an NPN transistor such as the BC547.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.