High-Output Piezo Alarm Transducer

This external-driven transducer delivers exceptionally high sound pressure levels (SPL), reaching 120 dB or more. With compact structure, fast response, and strong environmental resistance, it is suited for alarm systems, long-range communication, sonar equipment, and industrial noise simulation, supporting wide-area sound signaling.

Diameter [mm]
Height [mm]
Frequency [kHz]
Voltage
SPL [dB]
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Image Part Number DiameterD [mm] HeightH [mm] SPL [dB] FrequencyFreq [kHz] Rated VoltageVoltage Mounting
EFM-290ED EFM-290ED 40 20 90 3.4±0.5 9VDC PIN
EFM-290EK EFM-290EK 40 9 85 3.6±0.5 9VDC PIN
EFM-290EN EFM-290EN 40 11 85 3.6±0.5 9VDC PIN
EFM-290ES EFM-290ES 40 15 85 3.6±0.5 9VDC PIN
MFC-201P MFC-201P 40.6 19.3 90 3.4±0.5 9VDC PIN
MT-520 MT-520 51.5 15.2 98 2 ~ 4 18Vp-p PIN
W-07 W-07 29.7 16.5 100 3.2±0.5 9VDC LEAD WIRE
W-07A W-07A 29.7 16.5 100 3.2±0.5 9VDC LEAD WIRE
W-07CE W-07CE 29.97 10.5 110 3.3±0.5 125Vp-p LEAD WIRE
W-07P W-07P 29.7 16.5 100 3.2±0.5 9VDC PIN
W-25 W-25 45 23.3 105 2.2 ~ 4 12Vp-p PIN
W-25A W-25A 45 23.3 105 2.2 ~ 4 12Vp-p PIN
W-42 W-42 50.5 20 115 3.0±0.5 60Vp-p PIN