> How do you do this? There's no hole in the middle...I can just clamp them 
> between a couple

... lets see ... a 10x15x3mm Ohmite thick film rated at 20 watts ...
with a little web research you get:

<http://www.ohmite.com/catalog/pdf/tah.pdf>

According to that data sheet, "Mounting: Requires the use of a snap-on
style heat sink. A thermal compound should be properly applied."

Mark  AD5SS






On Fri, May 21, 2010 at 3:27 PM, Vic Rosenthal <v...@rakefet.com> wrote:
> I apologize in advance, but the smartest guys I know are here.
>
> I just received a few Ohmite thick film power resistors for an attenuator I'm 
> making,
> rated 20 watts. They are 15mm x 10mm x 3mm. Obviously they have to be 
> heat-sunk
> (heat-sinked?) if they are going to dissipate that much power.
>
> How do you do this? There's no hole in the middle...I can just clamp them 
> between a couple
> of pieces of aluminum, but is there a right way to accomplish this?
> --
> Vic
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