On Wed, 3 Jul 2002, Pic Dude wrote:

>Hey folks,
>
>I need to find some sort of material that I can place
>between a TO-220 device and a heatsink, that would
>"fill" an uneven gap.  I only know of mica sheets and
>thermal heat-sink grease (which I'm using), but I'm
>need something more "squishable" that will conform to
>the shape of the gap when squeezed.  Of course, if
>needs to promote thermal heat transfer, but does not
>matter if it conducts electricity or not.
>
>No, it's not easy to adjust it so that the surfaces
>are more parallel to each other.

There are silicone pads loaded with something. They are dark gray. I don't
know who makes them, maybe someone else on the list does. They have a
raised 'tube' that fits in the hole of TO220 devices so only a normal
washer is needed. They are good to 2kV or so.

Peter

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