V140LA5CPX2855

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TVS - Varistors, MOVs

The V140LA5CPX2855 is a Varistor and is widely used due to its variety of applications. Varistors are resistors that exhibit a non-linear voltage-current characteristic. They are basically used to protect PC-TV, household appliances, computers, communication systems, and automotive electronics from voltage spikes. It is specially designed to protect sensitive equipment from electromagnetic interference (EMI) and overvoltage transients.

The V140LA5CPX2855 is a considered an effective solution to protect circuits against spike-induced, overvoltage transients including lightning strikes. Its fast-acting device combines a metal oxide varistor (MOV) together with a bidirectional Transil diode.

Working Principle

The V140LA5CPX2855 device contains a MOV which is a non-linear resistor made from zinc oxide blocks. A layer of conducting material is spread over its surface, electrodes are then attached, one to each side. When the voltage through the varistor exceeds the voltage rating of the component, the MOV provides a low resistance path, which instantaneously limits the current surge to a safe level. The combination of MOV and Transil diode in V140LA5CPX2855 Varistor helps in this protection.

The Transil diode limits high surge voltages by providing a fast-acting doping of DC potential over the varistor and provides in addition, an ESD protection. The Transil diode is a unidirectional semiconductor device that limits the surge current by a zener-like avalanche breakdown. The combination of a MOV with a Transil diode always gives better results.

Application Field

Varistors, because of their ease of use in different applications, are now being used extensively. The V140LA5CPX2855 is an ideal choice in any application where electrical equipment needs reliable protection from voltage surges. The device offers excellent protection solutions for many applications, including TV-PCs, household appliances, computers, communication systems, and automotive electronics.

The V140LA5CPX2855 can provide protection for electrical equipment against dangerous lightning spikes. It is energy-efficient, cost-effective, and highly reliable. It also has excellent clamping capability and noise immunity. The device offers high surge capability and low clamping voltage and is available in a range of packages and ratings, allowing it to meet the needs of a wide variety of applications.

The V140LA5CPX2855 plays an essential role in protecting electrical equipment from lightning strikes and is a reliable solution for both damp and dry applications. It is robustly designed to offer longer service life and better performance than most of the traditional devices used in this field.

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