VK104ML151R008P050

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TVS - Varistors, MOVs

TVS (Transient Voltage Suppressor) devices are electronic components designed to securely protect sensitive components and circuits from destructive transients. They are most often used to safeguard against voltage spikes caused by electrostatic discharge, lighting strikes, and more. These devices are a key component in the design of any modern electronic system, and come in a variety of configurations to suit the needs of any design.

Within the category of TVS devices, Varistors and MOVs (Metal Oxide Varistors) are important electrical components whose job it is to divert or temporarily limit voltage to improve system performance in the event of electrical surges. In most electronic systems, they are used in conjunction with other protective components such as diodes or transistors.

The performance of MOVs and Varistors is determined by their seismic capacitance, voltage threshold, leakage current, and surge current rating. The surge current rating, also known as the clamping voltage, refers to the maximum voltage for which MOVs and Varistors are designed to handle without incident. Varistors are rated in volts (V) or kilovolts (kV), whereas MOVs are rated in joules (J).

The VK104ML151R008P050 is a specific type of Varistor. This device has a pulse-clamping voltage of 10 volts, and a maximum-rated voltage of 151 volts. Its leakage current rating is 0.8 microamperes, and its surge current rating is 50 amperes. The VK104ML151R008P050 is a robust device that is capable of handling high voltages and large currents with relative ease. It is most commonly used in applications where reliability and performance are paramount.

The working principle of Varistors and MOVs is based on the fact that when an AC or DC voltage is applied to a semiconductor material, the capacitance exhibited by the material changes. This capacitance is a direct result of the number of charge carriers (electrons or holes) present in the material. When the voltage applied to the Varistor or MOV exceeds the device’s rated voltage, the number of charge carriers present increases. This increase in the number of charge carriers causes an increase in capacitance, and as a result, the device acts as a voltage diverter or surge protector.

In conclusion, the VK104ML151R008P050 is a Varistor with a rated voltage of 151 volts, and a surge current rating of 50 amperes. It is most commonly found in applications where reliable performance is required and is used to divert or temporarily limit voltage in the event of electrical surges. Its working principle is based on the fact that when an AC or DC voltage is applied to a semiconductor material, the capacitance exhibited by the material changes, allowing it to act as a voltage diverter or surge protector.

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