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
CT15P-25S410-1B $0.69	Challenge Electronics	BUZZER PIEZO 5V 12X12MM" W SMD	Bulk		Surface Mount	-	-40°C ~ 85°C
CT18P-18S200-1 $1.65	Challenge Electronics	BUZZER PIEZO 12V 18X18MM SMD	Tape & Reel (TR),Cut Tape (CT)		Surface Mount	-	-40°C ~ 105°C
CT23P-30S320-2 $2.44	Challenge Electronics	PIEZO XDCR 7-15V SMT	Tape & Reel (TR),Cut Tape (CT)		Bracket Mount	-	-30°C ~ 85°C
CT25E-16T150-1 $1.45	Challenge Electronics	BUZZER MAGNETIC 12V 25MM TH	Tray		Through Hole	-	-40°C ~ 85°C
CT25E-16T75-1 $2.05	Challenge Electronics	BUZZER MAGNETIC 12V 25MM TH	Tray		Through Hole	-	-40°C ~ 85°C
CT30P-30T260-1X $1.85	Challenge Electronics	BUZZER PIEZO 12V 30MM TH	Tray		Through Hole	-	-40°C ~ 85°C
CT30P-50T400-1 $2.23	Challenge Electronics	BUZZER PIEZO 18V 30MM TH	Tray		Through Hole	-	-20°C ~ 60°C
CT31P-30W520-1 $1.60	Challenge Electronics	BUZZER PIEZO 18V 31.6MM FLANGE	Tray		Panel Mount, Flange	-	-20°C ~ 60°C