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  1. megahurts

    Thermal conductivity of potting epoxy

    Has anyone had experience with the thermal conductivity of potting epoxies? I have always been under the impression that when you pot a PCB assembly, you are trapping any heat generated on the board. I have recently been told that it is just the opposite when using the correct epoxy. In...
  2. megahurts

    Diode supression of relay back emf

    Yes, I am using a toggle switch to operate the motor, sorry, I should have mentioned it in my initial post. Thanks artym for your suggestion. I have seen surge absorbers used in other applications, but didn't think to use one here. There is a cost increase over a diode, but I'll save on not...
  3. megahurts

    Diode supression of relay back emf

    I am using a 12V relay to operate a DC motor in a motorcoach. I was wondering how important it is in this application to use back emf supression diodes across the relay coil. Do I really need to care about the energy spikes being put back on the 12VDC supply line? I had already put them in my...

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