1KSMBJ130

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1KSMBJ130 Application Field and Working Principle

1KSMBJ130 is a surface mounted TVS (Transient Voltage Suppressor) diode with unidirectional, bidirectional and over voltage protection. It is commonly used in all types of telecommunication, automotive and industrial applications. This device protects circuits from transients that occur during the switching of an electrical circuit such as a DC power supply or when the electrical load is powered up or down, shorting out, or subjected to external electrical transients or lightning strikes.

The 1KSMBJ130 device is a robust TVS diode that offers superior protection against high energy surges. It is designed to absorb fast and slow over-voltage voltage transients in both AC and DC lines with a reverse stand-off voltage range from 10 to 65 volts. The 1KSMBJ130 can dissipate up to 13W (10A 10/1000us).

The 1KSMBJ130 also features a unique snap-on clamping mechanism to provide extra protection against electrostatic discharge. It is designed to be mechanically and electrically secure to its mounting surface to ensure maximum circuit protection. This mechanism also makes the device less susceptible to thermal and mechanical stresses.

1KSMBJ130 is designed to withstand maximum voltages in excess of its rated value. Its fast-acting protection is triggered when the reverse voltage of the circuit exceeds the breakdown voltage of the diode. The switching time of the diode will be very short, typically between 200 and 2000 nanoseconds. It has an extremely low leakage, typically less than 0.1mA so it can provide the required protection without significantly affecting the voltage of the circuit or the current flow.

1KSMBJ130 is designed to protect circuits against damage caused by electromechanical or other transient stresses. It is able to absorb high energy surges within a defined range, up to a maximum of 13 watts. This device is used in applications such as telecommunications, automotive, power grid, and industrial, where it provides protection against surges, spikes, or lightening strikes.

The 1KSMBJ130 device works on the principle of avalanche breakdown. When a reverse voltage is applied, electrons are collected in a heavily doped region and an electric field develops which further accelerates the electrons until an avalanche breakdown occurs. At this point, the device ‘clamps’ the voltage and dissipates the energy. This energy is dissipated as heat in the device, so it is important to check the device temperature regularly for excessive heat dissipation.

In conclusion, 1KSMBJ130 is an efficient TVS diode with an application field and working principle that is widely used for high energy surge protection in various industries. Its superior protection and fast switching time make it an excellent choice for various applications that require protection against high energy surges.

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