Varistor Schematic Symbol


The schematic symbol for a varistor is:

Varistor Symbol

This is the most common type of symbol found for varistors in schematic diagrams.

Example circuit

An example circuit with a varistor is shown below:

Basic varistor Circuit

You can see the varistor is in parallel to the circuit to the right. Since a varistor's task to clamp excess voltage down to ground, it is put in parallel to electronic circuitry which we want to protect.

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