Piezo Buzzer Element 27 mm Metal Plate

From the shop's description

Piezo Buzzer Element 27 mm Metal Plate The Piezo Buzzer Element 27mm Iron Sheet is a high-performance piezoelectric diaphragm designed to operate as both a compact acoustic generator and a sensitive vibration sensor. It uses the piezoelectric effect to convert electrical energy into mechanical vibration to produce clear sound or convert mechanical force (like a knock or tap) into an electrical voltage. The element is composed of a ceramic disc bonded to a robust metal plate Features: 27 mm diameter metal‑backed piezoelectric disc for reliable acoustic coupling. Central 20 mm ceramic element for efficient piezoelectric conversion. Slim form factor — total thickness typically around 0.45 – 0.52 mm — ideal for compact designs. Specifications: Parameter Value Type Piezoelectric Diaphragm, External Drive Type Plate Size Dia. (D) 27.0 mm Element Size Dia. (a) 19.7 mm Total Thickness (T) 0.52mm Resonant Frequency 4.6 ± 0.5 kHz Resonant Impedance 200 Ω max. Capacitance 20.0 ± 30% nF [1kHz] Plate Material Iron Sheet Applications: Clocks and Calculators. Digital cameras. Various alarms, such as burglar alarms Audible feedback systems for input confirmation Other electronic equipment for sound indication . Package Include: 1x Piezo Buzzer Element 27 mm Metal Plate Documents: Piezo Buzzer Certification