Specification	SCH307NR

Approval Agency	CSA, cUL, UL
Current - Supply (Max)	12 mA
Current - Supply (Min)	4 mA
Driver Circuitry	Indicator, Internally Driven
Frequency	2.9 kHz
Height - Seated (Max)	1.33 in
Ingress Protection	IP66, NEMA 3R, 4X, 12
Input Type	DC
Mounting Type	Panel Mount
Operating Mode	Single Tone
Operating Temperature (Max)	65 °C
Operating Temperature (Min)	-30 °C
Port Location	Top
Size / Dimension Diameter	1.687 in
Sound Pressure Level (SPL)	93 dB
Technology	Piezo
Termination	Screw Terminal, Quick Connect Tab - (6.35mm)
Termination Probe Tip OD	0.25 in
Voltage Range (Max)	7 V
Voltage Range (Min)	3 V

SCH Series

Piezo Buzzers & Audio Indicators CHIME, 6-16VDC MED, CLASS I DIV II

Part	Termination Probe Tip OD	Termination	Driver Circuitry	Duration (Min)	Duration (Max)	Height - Seated (Max)	Sound Pressure Level (SPL)	Voltage Range (Max)	Voltage Range (Min)	Size / Dimension Diameter	Frequency	Port Location	Mounting Type	Input Type	Operating Temperature (Max)	Operating Temperature (Min)	Current - Supply (Min)	Current - Supply (Max)	Operating Mode	Ingress Protection	Approval Agency	Technology
Mallory Sonalert Products Inc. SCH616NPR	0.25 in	Quick Connect Tab - (6.35mm) Screw Terminal	Indicator Internally Driven	2 PPS	10 PPS	1.33 in	91 dB	16 V	6 VDC	1.687 in	2.9 kHz	Top	Panel Mount	DC	65 °C	-30 °C	6 mA	22 mA	Fast Pulse	12 4X IP66 NEMA 3R	CSA cUL UL	Piezo
Mallory Sonalert Products Inc. SCH307NR	0.25 in	Quick Connect Tab - (6.35mm) Screw Terminal	Indicator Internally Driven			1.33 in	93 dB	7 V	3 V	1.687 in	2.9 kHz	Top	Panel Mount	DC	65 °C	-30 °C	4 mA	12 mA	Single Tone	12 4X IP66 NEMA 3R	CSA cUL UL	Piezo
Mallory Sonalert Products Inc. SCH110NPR	0.25 in	Quick Connect Tab - (6.35mm) Screw Terminal	Indicator Internally Driven	2 PPS	10 PPS	1.33 in	90 dB	120 V	30 VDC	1.687 in	2.9 kHz	Top	Panel Mount	AC DC	65 °C	-30 °C	6 mA	24 mA	Fast Pulse	12 4X IP66 NEMA 3R	CSA cUL UL	Piezo
Mallory Sonalert Products Inc. SCH628ANPR	0.25 in	Quick Connect Tab - (6.35mm) Screw Terminal	Indicator Internally Driven	2 PPS	10 PPS	1.33 in	88 dB	28 V	6 VDC	1.687 in	2.9 kHz	Top	Panel Mount	AC DC	65 °C	-30 °C	4 mA	30 mA	Fast Pulse	12 4X IP66 NEMA 3R	CSA cUL UL	Piezo
Mallory Sonalert Products Inc. SCH616CPR	0.25 in	Quick Connect Tab - (6.35mm) Screw Terminal	Indicator Internally Driven			1.33 in	75 dB	16 V	6 VDC	1.687 in	2.9 kHz	Top	Panel Mount	DC	65 °C	-30 °C	6 mA	23 mA	Chime	12 4X IP66 NEMA 3R	CSA cUL UL	Piezo

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SCH307NR | Datasheet