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| Kevin Mullins:
I was thinking that too, either a PICO type fuse or a thermal fuse. And the other component doesn't "short" when it gets hot, it should "open". |
| DaOld Man:
An MOV's resistance drastically decreases when voltage goes above it's rating, to the point that it effectively shorts the incoming voltage, reducing it. The resistance decrease is linear with the voltage increase, but I did say it was a short and dirty description. :) http://en.wikipedia.org/wiki/Varistor How it works: http://electronics.howstuffworks.com/surge-protector1.htm |
| Kevin Mullins:
I could have swore there was a little oompa loompa in them things swithcing it on and off. But you're right.... I learn something new every day. I was under the impression they were more of a thermal "switch". Should have known better, similar things in a degauss circuit on monitors. Thanks for the clarification. :cheers: |
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