V140LA20CP Circuit Protection

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TVS - Varistors, MOVs, are essential components that provide protection from transient voltage surges. The V140LA20CP Varistor is an advanced voltage suppression device designed for protection against surges, transients, and other high-voltage swings.

The V140LA20CP Varistors are based on metal-oxide varistors, which are made up of zinc oxide grains with a dielectric oil and ceramic enclosure to prevent moisture and other environmental contaminants from entering the device. The metal-oxide varistors consist of a core and an electrode system connected to the anode and cathode to form an electrical bridge that will split as the voltage across the device exceeds a certain level. This splitting will cause a surge of electrical current that is directed away from sensitive components and will reduce the voltage to a safe level.

The most common application of the V140LA20CP Varistors is in the protection of sensitive electronic equipment from electrical transients. They are specifically designed to provide overvoltage circuit protection against transient voltage and surge currents in power supply circuits, communications systems, and automotive circuits. The V140LA20CP Varistors have a high surge current capacity which allows them to protect against voltage levels up to 20kV & 150A. This makes them perfect for protecting circuits from severe electrical transient events.

The working principle of V140LA20CP Varistors is simple. As mentioned, the metal-oxide varistors are made up of zinc oxide grains and a dielectric oil which when connected to two electrodes form a bridge. Whenever a high voltage surge is applied to the two electrodes, it creates a high current in the zinc oxide grains that then discharge the surge energy igniting the dielectric oil, providing a safe protection path to the circuit.

In addition to protection against electrical transients and surge currents, the V140LA20CP Varistors can also be used to provide active protection against overvoltages, undervoltages, and frequency variation. The integrated protection circuits within the device can be configured to activate when the voltage level reaches a certain threshold level, which helps prevent destruction of delicate systems.

All in all, the V140LA20CP Varistors are a great choice for providing protection against transient voltage surges, transients, and other high-voltage swings. Their metal-oxide construction and high surge capacity make them ideal for protecting sensitive components from the risks associated with sudden electrical surges. Their integrated protection circuits can provide additional protection against voltage level variations and frequency spikes, making them an excellent choice for any application in need of extra protection.

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