Proper mica insulator use

Jul 24, 2004 3 Replies

Sorry for the newbie question...



What is the right way to use a mica insulator on TO-220 parts? It seems to me that the supplied metal screw and nut would defeat the purpose of the mica, and conduct the TO-220 case to the heatsink.



You're missing the shoulder washer...

You are missing a little plastic washer/grommet that keeps the metal screw insulated from the tab.

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