FT-27B-23TE-SN

RYD FT-27B-23TE-SN is a large-diameter low-frequency piezoelectric ceramic buzzer disc built for alarms and warning signals that must carry over distance. The Ø27.0mm brass plate with Ø20.0mm ceramic disc resonates at 2.0±0.5kHz with static capacitance of 45.0nF at 100Hz, producing a deep, penetrating tone suited to automotive reversing alarms, agricultural machinery, outdoor alert devices and heavy-equipment indicators. The thin 0.23mm profile keeps mounting simple while allowable input reaches 30Vp-p from -20℃ to +70℃. Customization available: resonant frequency can be tuned through dimension adjustment, electrode layout and lead wire connection are configurable, protective coating on the ceramic surface can be applied per your design, and waterproof or dustproof treatment is available for outdoor installations; new designs can be developed for volume projects. Target scenarios: automotive alarms, outdoor warning devices, agricultural and construction equipment, industrial signaling.