ERZ-C20EK781Y

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TRS-C20EK781Y, which belongs to a group of devices known as TVS - Varistors, MOVs (transient voltage suppressors, metal oxide varistors or “surge-stoppers”), is specially designed for the purpose of providing surge protection in various applications. It is particularly used in applications such as cellphones, portable electronics, automotive and other electronic equipment. This article aims to provide a brief overview of its application field and working principle.

Application Field

TRS-C20EK781Y is mainly used to protect the device from the damaging effects of electrostatic discharge (ESD). It is also used to protect against overvoltage transients such as those caused by lightning, power transient and other abnormal voltage conditions. These ESD and overvoltage surges can negatively affect the health of the device, hence TRS-C20EK781Y is necessary to ensure the safe operation of the device.

TRS-C20EK781Y is also capable of protecting the sensitive components from the short circuit current generated by an internal arc. An arc is a form of electric discharge between two conductors in a medium such as air, and due to its high current and temperature, it can cause serious damage to the components. The TRS-C20EK781Y can effectively suppress the current and protect the components from this type of danger.

Working Principle

The TRS-C20EK781Y uses the principles of diode clamping and thermal breakdown to provide surge protection against transients. The device consists of two diodes connected in parallel, where one diode is forward-biased and the other is reverse-biased. During a transient surge, the forward-biased diode is “forced” into conduction and provides a path for the current to flow. The reversed biased diode allows the current to flow away from the device, thus protecting the sensitive components from the surge.

The TRS-C20EK781Y also utilizes a metal oxide varistor (MOV), which is connected in parallel with the two diodes. The MOV acts like a resistance, and by maintaining a low resistance during a surge, it reduces the magnitude of the surge. As the surge goes beyond the breakdown voltage of the MOV, the MOV’s resistance rapidly increases. This increased resistance helps to reduce the current flow and thus protect the device from further damage.

Conclusion

The TRS-C20EK781Y is an effective surge protection device which utilizes two diodes and an MOV in order to protect the device from transient voltages. It is mainly used to protect against ESD, overvoltage transients, and internal arc short circuit current. It is essential to use this device in order to ensure the health and safety of the device.

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