VOGONS


First post, by STX

User metadata
Rank Member
Rank
Member

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
Filename
TEAPO_680uF_200V.jpg
File size
111.04 KiB
Views
382 views
File comment
TEAPO 680µF 200V
File license
Fair use/fair dealing exception

Thanks for weighing in. 😀

Reply 2 of 5, by luckybob

User metadata
Rank l33t
Rank
l33t

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

User metadata
Rank Oldbie
Rank
Oldbie

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

User metadata
Rank l33t++
Rank
l33t++
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