Specification	PK-12N40PQ

Current - Supply	5 mA
Driver Circuitry	Indicator, Internally Driven
Frequency	4.1 kHz
Height - Seated (Max)	0.323 in
Input Type	DC
Mounting Type	Through Hole
Operating Mode	Single Tone
Operating Temperature (Max)	90 °C
Operating Temperature (Min)	-20 °C
Port Location	Top
Size / Dimension Diameter	0.551 in
Sound Pressure Level (SPL)	83 dB
Technology	Piezo
Termination	PC Pins
Voltage - Rated	12 VAC
Voltage Range (Max)	15 V
Voltage Range (Min)	3 V

PK Series

Headers & Wire Housings IPD1 Series Polarizing Plug

Part	Current - Supply	Sound Pressure Level (SPL)	Operating Mode	Voltage - Rated	Termination	Driver Circuitry	Frequency	Height - Seated (Max)	Technology	Input Type	Voltage Range (Min)	Voltage Range (Max)	Operating Temperature (Max)	Operating Temperature (Min)	Mounting Type	Size / Dimension Diameter	Port Location	Termination Probe Tip OD
Mallory Sonalert Products Inc. PK-20N38WQ	12 mA	85 dB	Single Tone	12 VAC	Wire Leads	Indicator Internally Driven	3.8 kHz	0.717 in	Piezo	DC	3 V	28 V	70 °C	-20 °C	Flange Panel Mount	0.906 in	Top
Mallory Sonalert Products Inc. PK-27A35EPQ	15 mA	95 dB	Single Tone	12 VAC	Quick Connect Tab - Screw Terminal	Indicator Internally Driven	3.5 kHz	0.933 in	Piezo	DC	3 V	24 V	70 °C	-20 °C	Panel Mount	1.437 in	Top	0.189 in
Mallory Sonalert Products Inc. PK-12N40PQ	5 mA	83 dB	Single Tone	12 VAC	PC Pins	Indicator Internally Driven	4.1 kHz	0.323 in	Piezo	DC	3 V	15 V	90 °C	-20 °C	Through Hole	0.551 in	Top
Mallory Sonalert Products Inc. PK-20N38PQ	12 mA	85 dB	Single Tone	12 VAC	PC Pins	Indicator Internally Driven	3.8 kHz	0.717 in	Piezo	DC	3 V	28 V	70 °C	-20 °C	Through Hole	0.906 in	Top
Mallory Sonalert Products Inc. PK-21N30PQ	12 mA	80 dB	Single Tone	12 VAC	PC Pins	Indicator Internally Driven	3 kHz	0.382 in	Piezo	DC	1.5 V	30 VDC	70 °C	-20 °C	Through Hole	0.945 in	Top

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