# \#varistor

**URL:** https://forum.plexim.com/tag/varistor/388.md

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## [How to simulate a device with known V-I Equation](https://forum.plexim.com/t/how-to-simulate-a-device-with-known-v-i-equation/674)

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**Author:** [@calcupen](https://forum.plexim.com/u/calcupen)\
**Replies:** 3\
**Last updated:** [September 20, 2026, 11:34pm UTC](https://forum.plexim.com/t/how-to-simulate-a-device-with-known-v-i-equation/674 "2026-09-20T23:34:03Z")

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I am trying to simulate a metal oxide varistor. Since PLECS does not have this component, I have tried simulating it with a C-script block, a function block, or a 1D lookup table block. Attached I have the circuit I have…