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20mm Uncased Piezo

A 20mm Uncased Piezo element with 90mm leads. Resonant frequency 6KHz. These elements require an external drive circuit to produce sound.

Availability: In Stock.

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Product versions:

This product is also available in the following versions:

Stock code
20mm Uncased Piezo, single
20mm Uncased Piezo, pack of 25

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Product description:

These 20mm Uncased Piezo elements have 90mm fly leads. They require an external drive circuit to produce sound.


  • Simple, inexpensive uncased piezo.


  • 1 x 20mm Uncased Piezo.


  • Diameter: 20mm.
  • Lead Length: 90mm.


  • External drive circuit.


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Posted by Sarah Evans, Thursday, 21 April 2016 on product 20mm Uncased Piezo
  • 0

    Yes you would be able to to use this, the code for using this buzzer would be slightly different to using a buzzer with built in drive.

    Posted by Michael Lockhart on Thursday, 21 April 2016
Posted by Gina Longman, Wednesday, 15 October 2014 on product 20mm Uncased Piezo
  • 0
    A: Hi, it would be very quiet with 3V. This piezo also has no drive. Are you planning on providing a frequency signal to it or just using it as an on-off type buzzer?
    Posted by Aaron Sturman on Wednesday, 15 October 2014

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Physical characteristics:

  • Diameter: 20mm.
  • Lead Length: 90mm.

Electrical characteristics:

  • Resonant Frequency : 6.0KHz.
  • Maximum Resonant Resistance: 500 Ohms.
  • Maximum Input Voltage: 30V (Peak to Peak).
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