Alarms, Buzzers, and Sirens

Alarms, Buzzers, and Sirens are devices that produce an audible signal usually like a steady high-pitched hum that is encased within a molded housing. The characteristics are driver circuitry, input type, voltage rated, voltage range, frequency, technology, operating mode, current supply, and port location. The technology is electromechanical, magnetic, piezo, and piezo (with feedback) with a frequency from multiple, 200Hz to 8kHz.

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Select products	Mfr	Description	Package	Supplier Device Package	Mounting Type	Series	Operating Temperature
PB-4739NL $6.00	Soberton Inc.	BUZZER PIEZO 12V 47X39MM FLANGE	Tray		Panel Mount, Flange	PB	-20°C ~ 60°C
PB2130UP002A	TDK Corporation	BUZZER PIEZO 12V 21MM TH	Tape & Box (TB)		Through Hole	PB	-20°C ~ 60°C
PDX04BFLFPN $0.94	DB Products	MT TRANSDUCER 1.5V PIN NORYL SP	Bulk		Through Hole	PDX	-30°C ~ 70°C
PF-12N40PEDR-24VICQ $4.58	Mallory Sonalert Products Inc.	6-28DC 63-82DB 4100F FP 13X7 160	Bulk		Through Hole	PF	-20°C ~ 70°C
PF-20A35EWQ $4.74	Mallory Sonalert Products Inc.	BUZZER PIEZO 12V 28MM FLANGE	Bulk		Panel Mount, Flange	PF	-20°C ~ 70°C
PF-21A29PQ $11.15	Mallory Sonalert Products Inc.	BUZZER PIEZO 12V 24MM TH	Bulk		Through Hole	PF	-20°C ~ 70°C
PF-21A31PQ $7.07	Mallory Sonalert Products Inc.	BUZZER PIEZO 12V 24MM TH	Bulk		Through Hole	PF	-20°C ~ 70°C
PF-21N30WQ $6.30	Mallory Sonalert Products Inc.	BUZZER PIEZO 12V 24MM FLANGE	Bulk		Panel Mount, Flange	PF	-20°C ~ 70°C