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Q&A

Comments on Electrolytic capacitor lifetime rating

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Electrolytic capacitor lifetime rating

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If you search through the electrolytic capacitor offerings from distributors like Farnell, RS, Digikey or Mouser, you find that the maximum life-time rating is commonly quoted as 5,000 or 10,000 hours at such and such a temperature.

If I divide 10,000 hours by 24, I get 417 days = 1.14 years. This cannot be a realistic life-time prediction so, how do I make sense of this number?

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General comments (4 comments)
General comments
Andy aka‭ wrote over 4 years ago · edited over 4 years ago

@manassehkatz I see you made an edit suggestion but I see nothing in what you did actually changed anything. If you are going to make an edit then please ask first out of politeness and don't assume that I will agree to it. I rejected the edit on that basis. I've now edited the post because of a spelling mistake and I felt the need to add more information. I don't know if you were attempting to fix the spelling mistake?

Andy aka‭ wrote over 4 years ago

If you were then rest assured, if you'd left me a comment, I'd have fixed it. I'm very wary about anyone editing my posts but I'm quite happy to receive a comment.

manassehkatz‭ wrote over 4 years ago

Sorry about that. Yes, spelling error that is already fixed plus a missing comma. Problem is a combination of "diff tool not very useful" + "description of suggested edits not required"

Andy aka‭ wrote over 4 years ago

Yes, the diff tool needs fixing because it will cause issues when people start using the site more.