EFM-321S

Features: 
High output
Sealed type
High reliability
Characteristic Min Typical Max Notes
Type Piezo
Excitation Internal Driven Tone: Continuous
Sound Pressure Level dB at 30cm 105 Measured 105 dB at 30cm
Frequency kHz 2.9 Rated frequency ± 0.5 kHz
Voltage V 3 12 16 DC voltage
Current mA 35
Temperature ºC -20 70
Width mm 45 Case:Fire-resistance ABS/White
Height mm 26
Weight g 22
Termination pin Pin separation: 17.00mm
Characteristic Response: 

Dimension Drawing: