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Old Dec 15, 2014, 03:37 AM
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United States, AL, Huntsville
Joined May 2011
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ceramic high efficiency low profile heatsinks

Anyone know where you can get ceramic heat sinks like on the lawmate transmitters?

Like on this one->
http://www.getfpv.com/fpv/1-2-1-3ghz...mitter-v2.html

Would love to use these on Vtx's I already have.
Cant find these heatsinks for sale anywhere...
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Old Dec 15, 2014, 02:38 PM
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Blue Sky's Avatar
Eureka, CA
Joined Oct 2002
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Found these, might work. http://www.ebay.com/itm/10pc-Ceramic...item20ba1598fb
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Old Dec 15, 2014, 07:37 PM
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United States, AL, Huntsville
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Originally Posted by Blue Sky View Post

Awesome! Nice find Blue Sky! And they are cheap too, 10pc for $3.30.
Definitely gonna give them a try. Look so much smaller than the aluminum heatsinks at RMRC.
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Old Dec 15, 2014, 08:37 PM
zev
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United States, MA, Natick
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weird, I never see ceramic heat sinks on like computer processors or anything like that... I wonder what the dis/advantages are.
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Old Dec 15, 2014, 09:50 PM
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Originally Posted by zev View Post
weird, I never see ceramic heat sinks on like computer processors or anything like that... I wonder what the dis/advantages are.

Not sure, but since Ive seen them on Lawmate VTx's and these are soo much smaller (thinner, is the key), I figured Id give them a try. Thankful Bluesky found them, I wasnt having so much luck.
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Old Dec 16, 2014, 01:59 AM
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Lakewood, Colorado
Joined Aug 2002
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The main advantage of ceramic heat sinks only comes when the heat
producing circuit components are metalically bonded directly to the ceramic surface (which
can be done, because it's an insulator, like circuit board material). They're becoming
popular with LED replacement bulbs because heat management limits the minimum
size of the bulb, and nobody wants to look at a big ugly metal heat sink. Now the whole base
of the bulb becomes a nice white ceramic heat sink.

I can't find any real performance comparisons between it and aluminum or copper
heat sinks when it is simply stuck on, as was done with the lawmate VTX linked above.
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