Electronics > Beginners

CAPACITOR Checking

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vinlove:
Has this capacitor gone bad? In paper, it is supposed to be 100uF.
But in checking out with the meters, it is 200 -230nF?

And Vloss= 7.1%?





bob91343:
Yes it's bad.  Throw it out.

vinlove:

--- Quote from: bob91343 on July 24, 2019, 05:05:56 pm ---Yes it's bad.  Throw it out.

--- End quote ---

Thanks for advice.  That cap is new, never been used. Just has been kept in the draw for 2-3 years. What could have made it gone bad?

Audioguru again:

--- Quote from: vinlove on July 24, 2019, 06:40:19 pm ---That cap is new, never been used. Just has been kept in the draw for 2-3 years. What could have made it gone bad?
--- End quote ---
It is normal for cheap, poor quality parts bought from ebay, AliExpress or Amazon to be bad when new, not to go bad later. I never buy cheap junk so I do not know how long they last.

bob91343:
Failure of a component could be due to a number of causes.  Sloppy manufacture, inadequate testing, deterioration on the shelf, exposure to hostile environments, and more.

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