FT-22.8T-4.0E

RYD FT-22.8T-4.0E is a mid-size piezoelectric ceramic buzzer disc tuned for balanced audible output in smart home appliances, IoT gateways and industrial indicators. The Ø22.8mm brass plate carries a Ø15.0mm ceramic disc and resonates at 4.0±0.7kHz with static capacitance of 15.0nF at 100Hz, a combination that keeps drive circuit design simple while producing a clearly audible mid-frequency tone at up to 30Vp-p from -20℃ to +70℃. Its 0.41mm total thickness suits standard buzzer housings and front-panel mounting. Customization available: resonant frequency can be tuned through dimension adjustment, electrode configuration and lead connection are configurable, protective coating on the ceramic surface can be provided to your design, and waterproof or dustproof treatment is available; new developments are welcomed for volume orders. Target scenarios: smart home devices, IoT nodes, home appliances and industrial control panels.