The Piezo Element 20mm is a piezoelectric sensor disc that converts mechanical pressure, vibration, and sound into a small electrical signal — and works the other way too, producing a tone when driven by a signal. With its compact 20mm diameter, it suits hobbyists, students, makers, and anyone building sensing or alert circuits at home, in the lab, or in a small project.
Key features
- Compact 20mm piezoelectric disc, easy to mount in tight spaces.
- Dual purpose: senses vibration, knocks, and sound, or sounds as a simple buzzer.
- Lightweight and low-power, friendly for battery-driven builds.
- Common, widely compatible component for breadboards and project boards.
Typical uses
- Vibration, tap, and knock detection for alarms or interactive projects.
- Simple buzzer or tone output in microcontroller circuits.
- Sound and contact sensing in DIY electronics and learning kits.
- Drum/knock sensors and similar maker experiments.
How to choose / tips
- Confirm the 20mm size fits your enclosure or mounting surface.
- For sensing, mount the disc firmly to the surface you want to monitor.
- Pair with a suitable resistor or driver circuit per your project guide.
Why tna W rna
At tna W rna we focus on reliable components, careful sourcing, fast delivery across Egypt, and cash on delivery for easy, worry-free ordering.
