V20E150PL4B7 Circuit Protection

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TVS - Varistors, MOVs (Transient Voltage Suppressors) is a class of components used for the protection of electrical components and circuits from excessive voltages and transient surges. The V20E150PL4B7 is one of the popular varistor devices from Vishay circuits that can be used in a variety of applications for transient voltage protection. In this article, we will discuss the application field and working principle of the V20E150PL4B7.

The V20E150PL4B7 is a metal-oxide varistor (MOV) that is designed for insertion in printed circuit boards (PCBs). It has a movable element that works as an energy buffer when the circuit voltage exceeds the clamping voltage and diverts the transient energy away from the load. This device has a cylindrical ceramic body with a bicolour disc terminal. It is designed to work under high temperature and harsh environmental conditions and it has a low dynamic body capacitance. This makes it suitable for use in circuit protection applications in telecommunications and power electronics.

The V20E150PL4B7 has a wide range of applications such as audio amplifiers, cable modems, digital signal processors, lightning protection, medical imaging devices, power supplies, and other electronic circuits. It has a very low self-inductance at high voltages and it is capable of reducing peak voltages by up to 3kV. It can also provide protection from overvoltage, electrical fast transients, and electrostatic discharge.

The working principle of V20E150PL4B7 is based on its surge current and peak pulse current capabilities that enable it to limit the voltage passing through it. It works by diverting the instantaneous surge current flowing through it due to the large transient voltage present in the line. At the same time, the ceramic composition of the device dissipates the transient energy due to the thermal energy generated by its metallic oxide layer. When a spike occurs, the current passes through the ceramic material and the MOV dissipates the energy before it reaches the load.

The V20E150PL4B7 is a versatile and reliable device for protection of circuits and devices against voltage transients. It has a wide range of applications across different industry sectors, from telecommunications to medical imaging. Its low inductance, fast response time, and high surge current capabilities make it ideal for high voltage transient protection. Furthermore, its bicolour disc terminal facilitates easy installation, making it a reliable component for various applications.

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