Datasheet PDF: http://bit.ly/TDK_EPCOS_MOV
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EPCOS Metal Oxide Varistors (MOV) Unlike the fuse or circuit breaker which offers over-current protection, the varistor provides over-voltage protection by means of voltage-clamping in a similar way to the zener diode.The word “Varistor” is a combination of the words -able resi- used to describe their mode of operation way back in their early days of development which is a little misleading since a varistor can not be manually varied like a potentiometer or rheostat.
|Maximum ratings (TA = 85 C)|
|Type (untaped) SIOV||S10K320|
|i max 8/20 s A||2500|
|Wmax (2 ms) J||50|