A piezoelectric plate is a device that uses the piezoelectric effect to measure pressure, acceleration, strain or force by converting them to an electrical charge. Piezoelectricity is the electricity generated by piezo element by effect called the piezoelectric effect. It is the ability of certain materials to generate an AC (alternating current) voltage when subjected to mechanical stress or vibration, or to vibrate when subjected to an AC voltage, or both. The most common piezoelectric material is quartz. Certain ceramics, Rochelle salts, and various other solids also exhibit this effect. 

Specification:
•    Resonance Frequency: 4.6 KHz +/- 0.5 KHz
•    Resonance Impedance: 200 Ohms
•    Capacitance: 20nF +/- 30% at 1 KHz
•    Operating Temperature -20 to +70 C
•    Storage Temperature -30 to +80 C
•    Metal Material Brass

Qty: Pack of 5 Pcs.