SMB10J12HE3/5B

Current - Peak Pulse (10/1000µs):	45.5A
Base Part Number:	SMB10J
Supplier Device Package:	DO-214AA (SMB)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive
Power Line Protection:	No
Power - Peak Pulse:	1000W (1kW)
Series:	Automotive, AEC-Q101, TransZorb®
Voltage - Clamping (Max) @ Ipp:	22V
Voltage - Breakdown (Min):	13.3V
Voltage - Reverse Standoff (Typ):	12V
Unidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes: SMB10J12HE3/5B Application Field and Working Principle

The Transient Voltage Suppressor (TVS) diodes are solid state components used to protect sensitive electronic circuitry from transients caused by lightning, electrostatic discharge (ESD), switching noises etc. The main principle behind these components is to provide a fast response to the transient voltage by conducting the current away and then quickly returning to its original state.The SMB10J12HE3/5B series of TVS diodes are designed to provide protection against transients caused by lighting and ESD. The main applications for this device range from industrial and communication systems, consumer electronics, automotive and military applications, as well as medical and industrial audio systems.The SMB10J12HE3/5B is a low-capacitance bidirectional transient voltage suppressor diode. This device is designed to work in an automotive environment, where it can take input voltages up to 15V. It is also designed for ESD protection up to 30kV contact discharge, as well as 2kV air-gap discharge. This device has a peak power rating of 200W and a typical junction capacitance of 2.0pf, making it ideal for voltage surge protection.The working principle behind this device is based on a two-stage avalanche current conduction. When a transient voltage appears, the device is designed to first clamp the voltage to a safe level and then quickly return to its original state. This is done with the help of a Zener diode, which is triggered by the voltage overshoot. This triggers the avalanche current conduction. The avalanche current conduction then limits the voltage and dissipates the transient energy away from the sensitive circuit.The SMB10J12HE3/5B also features various forms of protection against multiple transients, as well as a fast response time of less than 1µs. This makes it well suited for protecting sensitive circuitry against ESD, lightning, transient over-voltage and other high speed transients. In conclusion, the SMB10J12HE3/5B series of TVS diodes are ideal for protecting sensitive circuits against transients. Its low capacitance, high peak power rating, excellent transient protection and fast response time make it an ideal choice for protecting circuits in a variety of applications, from industrial and communication systems, to automotive and medical applications.

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