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Description:

This is a small 12mm round speaker that operates around the audible 2kHz range. You can use these speakers to create simple music or user interfaces.

This is not a true piezoelectric speaker but behaves similarly. Instead of a piezoelectric crystal that vibrates with an electric current, this tiny speaker uses an electromagnet to drive a thin metal sheet. That means you need to use some form of alternating current to get sound. The good news is that this speaker is tuned to respond best with a square wave (e.g. from a microcontroller).

  • Sound-making Type : Continuous Sound;
  • Rated Voltage : DC 5V
  • OPERATING VOLTAGE: DC 4~7V
  • Body Size(Terminalnot included) : 12 x 9.5mm / 0.47″x 0.37″(D*T);
  • TerminalPitch : 7.6mm / 0.29″;
  • Sound Output : ≥85dB
  • External Material : Plastic;
  • Frequency : 2300+/-300Hz
  • Current: : 30mA;
  • Operating Temprature:  -20~+85℃
  • Color : Black
  • Weight : 8g
  • DIMENSION:(UNIT:mm)

QQ截图20170505181015

Example:

Arduino Buzzer Turorial  http://osoyoo.com/2017/05/05/arduino-buzzer-turorial/

 

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