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Can mosfets touch each other back to back??

Discussion in 'General Electronics Discussion' started by Serge, Nov 26, 2016.

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  1. Serge


    Nov 2, 2016
    Hi all!

    Can mosfets touch each other back to back?? I plan to add a heat sink to the 2 mosfets that are back to back but
    before I do I just want to know if it can be done. The pics are the old mosfets bust as you can see they are back to back
    but they don't have a heat sink and I just want to add one that would take care of both at the same time. Any info will be welcomed!!!

    THANKS!!! View attachment 30502

    Attached Files:

    Last edited by a moderator: Nov 26, 2016
  2. davenn

    davenn Moderator

    Sep 5, 2009
    it would depend on how they are wired in the circuit
    but it would be pretty safe to assume that they cannot

    you would need the insulation pads between the back of each device and the heatsink
    and also either a Teflon screw and nut or a metal one but using the insulating washers so that the screw/nut cannot have contact with either of the devices

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