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Old 1st Dec 2017, 10:45 pm   #20
Join Date: Dec 2007
Location: Haarlem, Netherlands
Posts: 2,322
Default Re: Electrolytic capacitor fails after 1 hour in service!

Originally Posted by MrBungle View Post
Out of interest see there any negative transients or positive spikes? Each of those can knacker even the best of electrolytic capacitors in no time at all. Sticking an X2 rated cap across it as well might help.
An X2 capacitor may be severly underrated or otherwise unsuitable for decoupling noisy DC power supply lines. It was designed to satisfy a very specific set of conflicting requirements found in mains filters and the like.
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