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Old 10-10-2021, 04:43 AM   #1
alfredo2j90
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Join Date: Oct 2021
City & State: Victoria
My Country: Australia
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Default Old electrolytic capacitors

So as most of us know, old unused electrolytic capacitors are unrealiable due drying out and breakdown of the oxide layer.

I have a few questions regarding these issues.

1. Does using an electrolytic cap stop it from drying out or is it natural process that happens regardless?

2. With the breakdown of the oxide layer the ESR will increase as well as DC leakage. Say the cap has remained unused on a motherboard, psu or games console for many years, if the cap does not physically pop when power is applied what other damage could occur to the system if it was powered? Does the increased ESR and DC leakage damage the mobo, psu or games console or is the repair as simple as replacing the cap?

Last edited by alfredo2j90; 10-10-2021 at 05:20 AM.. Reason: Extra info
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