The Rise of Piezo Switches: What You Should Know
When researching the different types of switches, you may come across piezo. Not all switches rely on moving parts. In addition to mechanical switches, there are piezo switches. Piezo switches are essentially touch switches that feature a piezoelectric panel.

The Basics of Piezo Switches
Like all switches, piezo switches are designed to control a circuit. They can open or close a circuit. Piezo switches, however, are distinguished from their counterparts by featuring a piezoelectric panel.
Piezoelectric Panels
All piezo switches feature a piezoelectric panel. Piezoelectric panels are made of a special type of material that's able to hold an electrical charge when exposed to mechanical stress. Piezo switches aren't classified as mechanical switches. Nonetheless, they are exposed to mechanical stress during regular use. Pressing the button on a piezo switch will expose it to mechanical stress. The piezo switch's panel will then hold an electrical charge, which it will use to open or close the circuit.

