V385LT20CP

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TVS (transient voltage suppressors) are devices that protect sensitive electronic circuits against power surges. Varistors, MOVs (MetalOxide Varistors), or Transorb diodes are all types of TVS. Generally, these overvoltage protection devices (OVPDs) will absorb or short-circuit sudden changes in power. In this article, we will talk about the V385LT20CP, a particular type of MOV designed to protect sensitive low voltage electronics.

V385LT20CP Application Field and Working Principle

The V385LT20CP is a transient voltage suppressor (TVS) designed for low-voltage applications such as consumer electronics, automotive electronics, industrial electronics, telecom electronics, and portable devices. It is designed to protect against electrostatic discharge (ESD), electrical overstress (EOS), and induced lightning transients. It is a unidirectional device, meaning it only works on negative transient surges.

Its diagram consists of two pins, the cathode and the anode. The cathode is connected to the sensitive circuit and provides a path to ground in the event of an overvoltage. The anode is connected to a supply voltage and is used to power the device.

The device works by having a so-called “non-linear resistive” element. This element acts as a voltage dependent resistor and when the voltage exceeds a certain threshold, it triggers the device and provides a path to ground.

The V385LT20CP is a bidirectional MOV–it can protect sensitive electronics against negative transients. It is designed in such a way that it does not prematurely trigger with ESD pulses. It can also trigger with extremely low current pulses which makes it a good choice for applications with low-power loads such as solar panels, batteries, digital-inputs and wireless signals.

The V385LT20CP is a very reliable device with a lifetime exceeding 30,000 hours at 105°C and proven fast response times. It is also UL94V-0 flammability rated and RoHS compliant.

Conclusion

The V385LT20CP is an excellent transient voltage suppressor designed for low voltage applications. Its design allows it to provide effective protection against ESD, EOS and induced lightning transients. Its bidirectional ability and low power requirement make it a great choice for projects that involve low power loads. It is reliable and UL94V-0 compliant, making it a great choice for any project requiring overvoltage protection.

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