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In Reply to: RE: Thermistor? posted by unclestu on June 28, 2014 at 17:24:30
How do I pick the value?
Have to do some research on this I guess.
Cheers!
"I know just enough to get into trouble. But not enough to get out of it."
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The value should be a little bit higher than the fuse value in amps, the ohms should be as high as possible cold. CL80 or CL90 probably.
Ok. My line fuse is a slow blow 5amp and my screen a 1amp fast blow. So I'm thinking I need minimum of 1amp. 5amp doesn't seem to fit the available options.
"I know just enough to get into trouble. But not enough to get out of it."
Edits: 06/28/14
I like CL-90 n CL 60's i have sometimes paralleled devices.
Best not to parallel NTC IRLs. Unless exactly matched for pertinent electrical and thermal characteristics, one is bound to hog current from the other(s) creating a form of runaway with potential device overload issues. Series connection of similar thermistors is usually OK and parts can be selected to provide greater effective current capacity along with higher cold resistance.
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