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EFM-471AL

Features: 
High output
Low current
Characteristic Min Typical Max Notes
Type Piezo
Excitation Internal Driven Tone: Continuous
Sound Pressure Level dB at 30cm 90 Measured 90 dB at 30cm
Frequency kHz 3.7 Rated frequency ± 0.5 kHz
Voltage V 18 24 30 DC voltage
Current mA 20
Temperature ºC -20 70
Width mm 32 Case:ABS/White
Height mm 15
Weight g 8.4
Termination lead wire
Characteristic Response: 

Dimension Drawing: