Description

This diaphragm with a diameter of 30mm piezo is protected with a plastic case to fix it easily thanks to these two "ears". The sensor piezo can convert a vibration in voltage or a voltage in vibration. This means that you can also use it in like a buzzer to send sounds, the beeps, or as a sensor to detect an impact or shock on the membrane. For example, it can be used as a battery to detect the impulses of the baguette.

It is designed to operate up to 12VDC, but it is possible to use it with the 3V3 or the 5V to get a well audible signal. The piezo is pre-wired with two sons which allows to easily use it on a breadboard.

Features

• Recommended voltage: 12VDC
  Max voltage: 1-30vdc
  Currant nominal (MAX): 3.5MA
  Sound output at 10 cm: 85db
  Resonance frequency: 1300Hz ± 500 / 4000 Hz ± 500
  Operating temperature:-20℃ ~ + 60℃

• Dimensions mounting width: 41mm 
  Diameter: 30mm
  Central diameter: 5.7 mm / 0.2 "
  Weight: 4.3 g

Documentation:

Jouer of music with the tone on Arduino: Play a Melody using the tone() function

Detecting a vibration with a piezo on Arduino: Knock