Cap at top center:
Or just marking? The red stuff seems to have substance to it (more than just ink)...
No bulging, or leakage elsewhere.
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just
Looks like QC marked it with a grease pencil. Only they know what it means.
Yeah, that'd be my guess too, FWIW. The cap looks fine. What's the ESR like?
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W
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In my opinion, I would have said no, not any kind of leakage
Arfa
just
Could there have been some foam/packing material stuck to it ? I've seen red glue used for that purpose.
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It'll leak from the bottom first onto the PCB and the top will eventually bulge or split.
So, no.
Graham
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If it's pushed the crimp open the substrate certainly had to expand. Does this cause a significant problem? Depends on if the cap has a high ESR.
That 'red stuff' may or may not have originated from inside.Having torn apart many electrolytics and blowing them up by accident and on purpose I can't remember one spewing bright red stuff.
Me neither. It's usually yellow or yucky off-white.
Graham
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Ditto. IMO, it's red marker from the factory.
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W
. | ,. w , "Some people are alive only because
\\|/ \\|/ it is illegal to kill them." Perna condita delenda est
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