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EFM-290EDFP

Features: 
Loud
Low current consumption
High Efficiency and Reliability
Uses: CO detectors, Gas Detectors, Fire Alarms etc
Characteristic Min Typical Max Notes
Type Piezo
Excitation External Driven Tone: Continuous
Sound Pressure Level dB at 30cm 105 dB(A) at 4.5VDC /300cm
Frequency kHz 3.2 ±0.5kHz
Voltage V 2 4.5 7 DC voltage supply in test circuit (see diagram below)
Current mA 50 Current consumption of test circuit at 4.5V
Temperature ºC -20 70 for operation. Storage: -20 to 85C
Width mm 40 40 Case:PC (141R)/Black
Height mm 13
Weight g 9
Mounting Through Hole
Termination pin
Characteristic Response: 

Dimension Drawing: 

Test Circuit.