Bottom of Piezo Buzzer

This piezo sounder is an inexpensive way to add sound to your project. The wide operating voltage of 1 – 30 V and low current draw (5 mA at 9 V) make it easy to control this buzzer directly from a microcontroller I/O line. The volume can be increased by driving the two pins differentially from two I/O lines. These buzzers are manufactured for name-brand household applicances, so you get the benefit of a well-engineered product at a mass-production price.

The pins on this buzzer can be jammed into a breadboard (it’s a little bit tight, but it fits).

Additional specifications can be found in the datasheet (1MB pdf).

Frequency response curve for the 30mm piezo buzzer.

30mm piezo buzzer dimensions (in mm).


File downloads

Piezo buzzer datasheet (1MB pdf)
The datasheet for the piezo sounder.


SKU PL-1260
Brand Pololu

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