Definition
Varistors are nonlinear electronic component designed to protect electrical circuits from excessive voltage surges or transients. It is a resistor whose electrical resistance varies significantly with changes in voltage. Basically, there are two types of varistors named as Metal Oxide Varistors and Silicon Carbide Varistors.
Protected_Circuit
What are Varistors ?
A Varistor is an electronic component designed to protect electrical circuits from excessive voltage surges or transients. It is a nonlinear resistor whose electrical resistance varies significantly with changes in voltage. Varistors are commonly used to safeguard sensitive electronic devices and equipment by diverting excess voltage away from them.
Varistors are frequently employed in parallel with the devices or circuits they are designed to safeguard. When there is a voltage spike, the varistor effectively “clamps” the voltage at a safe level, keeping it from reaching the protected components. The varistor recovers to its high-resistance state after the surge has passed.
Table of Content
- Definition
- Varistor Symbol
- Packages
- Construction of Varistor
- Types of Varistor
- Operation and Characteristics Graph
- Properties of Varistors
- Characteristics of Varistors
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