Metal Oxide Varistor (MOV) 10D330K
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Prices updated: 13 Oct 2026
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About this product
A metal oxide varistor (MOV) with radial leads, used for transient surge protection and EMI suppression on AC or DC lines. It clamps voltage spikes by conducting when the voltage exceeds its rated threshold. The listing is inconsistent: the title gives 10D330K while the description gives 10D471K, so confirm the varistor voltage in a datasheet before use.
Specifications
- Type
- Metal oxide varistor (MOV)
- Material
- Metal oxide, plastic
- Maximum limited voltage (as listed)
- 330 V
- Lead length
- 2.8 cm (1.1 in)
Frequently asked questions
How do I choose the right varistor voltage for mains?
The varistor voltage must be above the peak of the normal line voltage. Egyptian mains is about 220 to 230 V AC at 50 Hz, with a peak near 325 V, so the rated varistor voltage has to be chosen above that peak with a suitable margin. Check the datasheet for the exact value.
Why does the code 10D330K raise a question?
In the common MOV naming convention, 330 means 33 V, which would not suit mains use. The listing states 330 V instead, so the rating is unclear. Confirm the varistor voltage with the manufacturer datasheet before connecting it to a line.
