Varistors, also known as voltage-dependent resistors or VDRs, are electronic components that have a nonlinear resistance characteristic. They are used to protect circuits from excessive voltage spikes and surges by limiting the voltage that passes through them. Varistors are made from semiconductor materials such as silicon carbide or zinc oxide, and they exhibit a high resistance at normal operating voltages but rapidly decrease in resistance when the voltage exceeds a certain threshold.
A varistor is a type of resistor that has a voltage-dependent resistance. It is designed to protect electronic circuits from transient voltage spikes and surges by diverting excess current away from sensitive components. Varistors are commonly used in power supplies, telecommunications equipment, industrial machinery, and consumer electronics to prevent damage caused by voltage fluctuations.
Varistors are used in a wide range of industries and applications where protection against voltage surges is necessary. Some common uses of varistors include:
Varistors are used in various applications to protect electronic circuits from voltage spikes and surges. Some of the key applications of varistors include:
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