Voltage - Clamping (Max) @ Ipp:	70.1V
Supplier Device Package:	DO-214AA (SMBJ)
Package / Case:	DO-214AA, SMB
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	Automotive, Telecom
Power Line Protection:	No
Power - Peak Pulse:	1000W (1kW)
Current - Peak Pulse (10/1000µs):	14.3A
Series:	1KSMBJ
Voltage - Breakdown (Min):	48.5V
Voltage - Reverse Standoff (Typ):	43.6V
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Part Status:	Obsolete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

1KSMBJ51A Application Field and Working Principle

TVS diodes are an essential component of any electronic system. TVS (transient voltage suppression), as the name implies, are diodes that help protect an electrical circuit by absorbing any excessive voltage above a certain level. They provide protection against transient voltage induced by a sudden current flow during a power surge, and also help prevent an overvoltage situation from occurring.TVS diodes are designed to be used in various types of electronic devices, from consumer-level items to industrial applications. They are particularly useful in industrial applications, where the high levels of power needed can cause a great deal of damage to sensitive components.The 1KSMBJ51A is a voltage-sensitive TVS diode designed for use in applications where the maximum input voltage is 32 Volts. It has a maximum continuous voltage of 24 Volts, and a peak reverse current of 100 Volts. It can be used in both AC and DC applications, and operates at temperatures ranging from - 40°C to + 85°C.The 1KSMBJ51A operates by absorbing the voltage induced by a power surge or overvoltage situation. It is designed to have a low on-state voltage drop so that it does not interfere with the normal operation of the circuit, and also so that it can easily handle high currents.When a voltage above 32 Volts is applied, the diode will start to conduct current. This current causes the internal body diode to become a resistance to the current, allowing the energy of the power surge to be dissipated more gradually. The body diode is a reverse biased diode, meaning that current can only flow one way in the diode, and the 1KSMBJ51A will draw current from the higher voltage source until the voltage drops back to a safe level.This is why TVS diodes are essential for protecting circuits from sudden surges of voltage and other types of voltage disturbances. They absorb the voltage spike and dissipate it more gradually, allowing the circuit to continue to operate normally, even in hazardous situations. The 1KSMBJ51A is an example of a TVS diode that is designed to be used in a variety of applications.

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