V420LC20A

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TVS - Varistors, MOVs is a type of electrical component which works to reduce overvoltage conditions and protect circuits by absorbing and dissipating electrical energy.

A V420LC20A is an industrial-grade metallized varistor designed for high-voltage, high-energy pulse applications. It has an operating voltage range from -400 V to +450 V, a low operating voltage of -400V, and a max peak current rating of 10KA. A varistor is a voltage-dependent resistance component that changes its electrical characteristics when the applied voltage changes. It is designed to protect surge or transients overvoltage conditions.

The main application field of the V420LC20A is power protection in industrial, consumer, and automotive applications. It can provide protection from power surges such as lightning or line spikes. It also provides protection from overvoltage pulses caused by switching surges and other transients, such as induced control circuit transients. It is used in a variety of AC and DC circuits, including motor control, power supply, and battery backup.

The working principle of a V420LC20A is based on its electrical characteristics. It is a capacitor-like device which absorbs and dissipates electrical energy. When a voltage transient occurs, the V420LC20A absorbs the excess energy and dissipates it in the form of heat, allowing the voltage to remain within normal operating range. This process is known as "clamping". The MOV works by "clamping" the voltage transient within a safe range to protect sensitive components in the circuit.

In addition, the V420LC20A features an enhanced thermal performance for increased temperature endurance and longevity. This improved thermal performance helps to improve system reliability and increase the life of the MOV. Its reverse leakage current is also low, providing a sharper voltage response and increased protection against overcurrent events.

The V420LC20A is a rugged and reliable device, with the ability to withstand high surge current values and long-term voltage exposure. It is an ideal choice for industrial power protection applications due to its excellent surge handling capability, low reverse leakage current, and enhanced thermal performance.

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