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Piezoelectric Sounder, External Drive, 75dB, 4kHz, manufactured by Murata, made in Japan.

Part Numbering Information, PDF
Dimensions
Applications
Frequency Response 3.00 Vp-p Square
Frequency Response 1.00 Vrms Sine
Recommended Circuit

Global Part Number	PKM22EPP-4001-B0
Previous Part Number	PKM22EPP-4001
Sound Pressure Level	75dB min.
Measure Condition of Sound Pressure Level	[3Vp-p,4kHz,square wave,10cm]
Oscillating Frequency
Measure Condition of Oscillation Frequency
Current Consumption
Measure Condition of Current Consumption
Min. of Operating Voltage Range
Max. of Operating Voltage Range	25.0 Vp-p max.
Capacitance	12.0nF ±30%
Measure Condition of Capacitance	[1kHz]
Type	Pin Type
Operating Temperature Range	-20 to +70°C
Storage Temperature Range	-30 to +80°C
Alternatives	PKM22EPPH4001-B0