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
RDTE-2.700-8585-NS3 $1.22	Raltron Electronics	BUZZER MAGNETIC 3.6V 0.3X0.3 SMD	Tape & Reel (TR),Cut Tape (CT)		Surface Mount	RDTE	-20°C ~ 70°C
RDTE-4.000-3030-NS1 $1.43	Raltron Electronics	BUZZER MAGN 3V 0.12"X 0.12" SMD	Tape & Reel (TR),Cut Tape (CT)		Surface Mount	RDTE	-20°C ~ 70°C
RDTE-4.000-4040-NS1 $2.41	Raltron Electronics	BUZZER MAGN 3V 4X4MM W SMD	Tape & Reel (TR),Cut Tape (CT)		Surface Mount	RDTE	-20°C ~ 70°C
RDTE-4.000-4040-NS2 $1.75	Raltron Electronics	BUZZER MAGN 3V 4X4MM W SMD	Tape & Reel (TR),Cut Tape (CT)		Surface Mount	RDTE	-20°C ~ 70°C
RDTE-4.000-5050-NS1 $1.50	Raltron Electronics	BUZZER MAGN 3V 5MMX5MMSMD	Tape & Reel (TR),Cut Tape (CT)		Surface Mount	RDTE	-20°C ~ 70°C
RDTE-4.000-5050-NS2 $1.47	Raltron Electronics	BUZZER MAGN 3V 5MMX5MMSMD	Tape & Reel (TR),Cut Tape (CT)		Surface Mount	RDTE	-20°C ~ 70°C
S19 $68.13	VersaSense	BUZZER PIEZO 15V - TH	Bulk		Through Hole	-	-20°C ~ 70°C
SBM2 $23.87	Mallory Sonalert Products Inc.	BUZZER PIEZO 42.85MM TH	Bulk		Through Hole	SBM	-30°C ~ 65°C