Capacitor Value Designation Question

KevinMullins

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What's the value of this surface mount aluminum electrolytic capacitor ?
 

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Kind of thought that as others on this board are labeled 47 25v.
But the 25"A" on this one is throwing me off. Plus the designations aren't in the same "order" as the others.
Guess I could trace the circuit and see if it on the same circuit as one of the other 25v caps.

Here's an example of the others.
 

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Last edited:
Yeah looks like 100uF 25V.

The "A" might indicate temperature range or an ESR value-type, if I had to guess. Best to check the part's datasheet.
 
Yeah looks like 100uF 25V.

I think I'm going to concur with the both of you.... 100uf 25v.
I went back and traced the caps out a bit and one of the ones in question definitely shares both the positive and ground of one of the 47uf 25v caps. So should be safe to say it's 25v.

The "A" might indicate temperature range or an ESR value-type, if I had to guess. Best to check the part's datasheet.

Yeah, I was trying to do that earlier but was having troubles pulling up .pdf's on my browser for some reason while surfing around looking for information. (something "updated" I'm sure, never had a problem before)

There's only five of this style capacitor total on this board, 3 of the 47 25v, 2 of the other. The rest of the capacitors are regular SMD caps.
I have a short somewhere and wanted to remove the electrolytics in that circuit to narrow my search down, but wanted to identify them just in case I mutilate one of them. :)
 
I think that applies to caps marked like their example "G106" where "G" = 4 volts.
An alternative code system employs a letter followed by three figures.

Similar to what you typically see on polyester caps and such.
(J106,F104, etc, etc, I dunno, just making them up)
 
yea, i could definitely be wrong. I don't know much about this yet, but i'm definitely staying tuned to this thread :D
 
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