Capacitors identification

mozart1973 · May 6, 2013

How do you tell the differense between Ecaps and non Ecaps if they look alike. There is no indication of minus or plus and both ends have a groove. What are they?

hassan789 · May 6, 2013

ecaps = electrolytic caps?
electrolytic capacitors are usually marked. If they look like ceramic capacitors, then it hard to tell of coarse.

Usually, Tantalum caps are the ones that look similar to ceramics... but alot of them are marked. If they are not marked, then it will be hard

mozart1973 · May 6, 2013

hassan789 said:
ecaps = electrolytic caps?
electrolytic capacitors are usually marked. If they look like ceramic capacitors, then it hard to tell of coarse.

Usually, Tantalum caps are the ones that look similar to ceramics... but alot of them are marked. If they are not marked, then it will be hard

So if it has no indication of which pin is neg or pos it's a non-Ecap even though it has the same casing?

hassan789 · May 6, 2013

No. Basically what I'm saying is that if its not marked, you will not know just by looking at it.

for more info, check this video: https://www.youtube.com/watch?v=C2hMMydb0Qc (skip to 01:11)

mozart1973 · May 6, 2013

hassan789 said:
No. Basically what I'm saying is that if its not marked, you will not know just by looking at it.

for more info, check this video: https://www.youtube.com/watch?v=C2hMMydb0Qc (skip to 01:11)

He is saying that caps over 1mf are usually Ecaps. Do I need a cap checker to know what it is are is there another way to determine the type?

Capacitors identification

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