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Mark Zacharias Mark Zacharias is offline
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Default thin chinese capacitor syndrome

"Gareth Magennis" wrote in message
...

I keep coming across this problem.

A (chinese made) power supply has blown its main caps.
Turns out said caps are allegedly made by Funtek or some other made up
name.
I presume that the footprint of these caps are made as small as possible
to make the PCB as small as possible, height of caps is not so relevant.

Problem is nobody stocks those value caps in diameters that thin, so there
is no way to easily replace them as they will not physically fit the
space.
The other problem is that the originals often blow up and need to be
replaced.
Maybe there's a reason these are not made so thin.


3 examples just in the last week are all 22mm diameter caps, where the
only ones I can find are 25mm and above.

4700uF 25v
680uF 200v
3300uF 63v



Gareth.


In time I would expect the thinner lower profile caps will become more
generally available. Meantime - you can often buy complete power supplies
(in the U.S. anyway) from second sources - Shopjimmy.com, even eBay. I'll
sometimes search the part number using Google shopping or Amazon's search
engine.

Sometimes even the prices are attractive. I've seen some Samsung power
boards going for less than 25.00.

Mark Z.