# SMD-MOV Surface-Mount Metal-Oxide Varistors

> Surface-mount metal-oxide varistors for board-level surge protection in high-density power designs. Case sizes 3225 and 4032, nominal codes 201K–821K. Part-number list on request.

- Series code: SMD-MOV
- Product line: [Varistors](https://www.songtian-ste.com/en/products/metal-oxide-varistors/) › SMD varistors
- Also listed in: [SMD components](https://www.songtian-ste.com/en/products/smd/)
- Part numbers and datasheets on request
- Page: https://www.songtian-ste.com/en/products/smd-varistors/smd-mov/
- Chinese version: https://www.songtian-ste.com/zh/products/smd-varistors/smd-mov/
- [Ask AI about this series](https://www.songtian-ste.com/en/products/smd-varistors/smd-mov/?ask=Help%20me%20choose%20a%20part%20from%20the%20STE%20SMD-MOV%20series.)

## Key specifications

| Parameter | Value |
| --- | --- |
| Nominal code range | 201K–821K |
| Case size | 3225 / 4032 |
| Key selection parameters | MCOV · V1mA · VC · Imax |
| Operating temperature | −40 °C to +125 °C |

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