SCE028SA3DT7B

Series:	SCE
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Driver Circuitry:	Indicator, Internally Driven
Input Type:	AC
Voltage Range:	16 ~ 28 V
Frequency:	2.9kHz
Technology:	Piezo
Operating Mode:	Warble, Fast
Duration:	7 WPS
Sound Pressure Level (SPL):	65dB @ 16V, 61cm
Current - Supply:	40mA
Port Location:	Top
Operating Temperature:	-40°C ~ 85°C
Approvals:	cUL, UL
Ratings:	--
Mounting Type:	Panel Mount
Termination:	Terminal Block
Size / Dimension:	1.687" Dia (42.85mm)
Height - Seated (Max):	1.511" (38.39mm)

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Alarms, Buzzers, and Sirens

Alarms, buzzers, and sirens are all widely used as security instruments. From professional alarm systems and doorbells, to domestic personal security alarms, there are a wide variety of components and technologies available. The SCE028SA3DT7B is an example of a component designed to provide hardware control for systems that provide audio signals of various kinds.The SCE028SA3DT7B is a low cost, reliable, low power, and compact buzzer component. It is designed to be used in situations where a wide range of audible alert and notification signals are required. It does not require a sound system or electrical power source, making it an extremely versatile tool for commercial and residential alarm systems. It provides a range of sound levels and frequencies to meet the needs of any application.The core feature of the SCE028SA3DT7B is its ability to produce both steady-state (constant) and pulsed sound signals. Steady-state signals are very useful for medical and emergency systems that must provide continuous alerts. Pulsed signals are typically used for alarm systems that need to indicate a specific event.The working principle of the SCE028SA3DT7B is based on a piezoelectric principle. A piezoelectric material, such as a quartz crystal, is used to vibrate a component, such as a folded metal diaphragm, which creates sound. The piezoelectric material is powered with a low current, which vibrates the diaphragm, producing sound waves that can be heard from a distance. A control board is then used to adjust the frequency, amplitude, and waveform of the signal that is produced.The SCE028SA3DT7B is suitable for a range of applications in commercial and personal security systems, building intercoms, fire alarms, medical alert systems, doorbells, access control systems, and more. It is also highly suitable for home use, where it can be applied to provide burglar alarms, smoke detectors, and other notification systems.The SCE028SA3DT7B is designed for reliability, low power consumption, and excellent field performance. It is capable of performing at temperatures from -20°C to +40°C, making it particularly suitable for outdoor applications. The device can withstand high levels of vibration, salt mist, and varying weather conditions. A wide range of operating voltages is available, allowing the component to be used in many different electronics projects.Overall, the SCE028SA3DT7B is an ideal choice for electronic systems that require reliable, consistent sound signals. Its versatile output makes it well-suited for a range of security systems and other applications. Its proven design ensures reliable performance, making it an excellent choice for safety and security systems.

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Part Number	Manufacturer	Price	Quantity	Description