SMBJ100A R5G

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TVS diodes, or transient voltage suppressors, are components that can be used to protect electronic circuits from voltage spikes that occur due to electrical noise, electrostatic discharge, and other voltage surges. The SMBJ100A R5G is a unidirectional TVS diode that is designed to protect circuits from transient voltages up to 5 Volts (RMS) and to contain any transients up to 14 Volts.

The SMBJ100A R5G has a maximum peak pulse power rating of 600 Watts and a clamping voltage of 16.1 Volts. It is packaged in a SMA-type surface-mount case for easy installation. The device is designed for industrial, military, and automotive applications where a high level of suppression is required. It is also suitable for space-constrained applications where maximum protection from overvoltage transients is desired.

The working principle of the SMBJ100A R5G is based on a form of reverse-biased zener breakdown. When the diode is in its reverse-biased state, its current is nearly zero. As the voltage increases a certain amount, the junction reaches the zener breakdown voltage and starts to conduct current. The diode will then act as a clamped element, allowing a certain amount of current to flow before it is quickly turned off and hence, limiting the current flow and preventing damage to the protected circuit.

The protection provided by the SMBJ100A R5G is further enhanced by its low reverse recovery time which is less than 1 nanosecond, enabling it to clamp the transient voltage quickly and prevent damage to the protected circuit. The device also has a low leakage current of 0.1mA which ensures a low level of power consumption.

In terms of applications, the SMBJ100A R5G is widely used in automotive, medical, industrial, and military applications such as DC-DC converters, power management ICs, motor controllers, and USB protection. It is also found in consumer electronics products as well as telecom and networking equipment. Additionally, these diodes inherently prevent propagation of lightening transients, making them suitable for outdoor applications.

In summary, the SMBJ100A R5G is one of the most widely used unidirectional TVS diodes that is suitable for a range of applications requiring transient protection. Its low reverse recovery time and low leakage current facilitates a high level of protection while its tiny SMA-type surface-mount form factor allows it to be installed in space-constrained applications.

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