VOGONS


First post, by STX

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The tops of these PSU capacitors are almost flat. Is this how they normally appear, or is the slight roundedness a sign of capacitor degradation?

TEAPO_680uF_200V.jpg
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TEAPO 680µF 200V
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Thanks for weighing in. 😀

Reply 2 of 5, by luckybob

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Those look like primary caps. (high voltage) And it's not uncommon to cover the metal with plastic for safety concerns. (think electrical shorts)

I have yet to personally see a primary side capacitor fail in anything i've re-capped. And I've only replaced them twice, and in both instances, I did so because I was re-capping the whole board anyway.

You can pull the plastic bit off. It's not glued on, but held by the outer plastic sheath. Personal experience tells me, there is a 99% chance those caps are just fine.

It is a mistake to think you can solve any major problems just with potatoes.

Reply 3 of 5, by PCBONEZ

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What luckybob said.
.
Those are plastic discs.
Those caps are on the AC side and they rarely fail.
.

GRUMPY OLD FART - On Hiatus, sort'a
Mann-Made Global Warming. - We should be more concerned about the Intellectual Climate.
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.

Reply 5 of 5, by gdjacobs

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PCBONEZ wrote:

Those caps are on the AC side and they rarely fail.
.

Yes. They live a simple, low stress lifestyle. They undoubtedly eat kale.

All hail the Great Capacitor Brand Finder