Trying to identify this cap

[tag4lucy]

Hi everyone
I have a gpu and I need to order a new cap for it. On the top its labeled
LF 820 e 35u. I was given this link for the same cap but it's 35k (http://au.rs-online.com/web/p/alumin...itors/5252600/)

Thank you in advanced for the help

[PeteS in CA]

Re: Trying to identify this cap

Looks like it's a Nichicon LF series polymer cap.

"820" = 820uF

"e" = 2.5 V

"35k" and "35u" = Lot codes

[tag4lucy]

Re: Trying to identify this cap

Cheers mate

[Techgeeky]

Re: Trying to identify this cap

Looks like it's a Nichicon LF series polymer cap.

"820" = 820uF

"e" = 2.5 V

"35k" and "35u" = Lot codes

e represents 2.5 v, but as far as I know, three letter code for all capacitors use AB * C pf technique. Here 820 will be 82 pF instead of 820 uF. Check this calculator: http://www.electricalcalculators.org...or-calculator/ It is for ceramic but code is same for all caps though.

[budm]

Re: Trying to identify this cap

e represents 2.5 v, but as far as I know, three letter code for all capacitors use AB * C pf technique. Here 820 will be 82 pF instead of 820 uF. Check this calculator: http://www.electricalcalculators.org...or-calculator/ It is for ceramic but code is same for all caps though.

Not for all capacitors. And not all manufacturers use the same marking code system printed on the cap
And per spec sheet:
I.E.
560 = 56uF
561 = 560uf

So per spec sheet '820' = 82uF

[Behemot]

Re: Trying to identify this cap

Per spec sheet 560=560 uF of course. Read it again, part numbering system for ordering and BOX LABEL printing (on the right) has nothing in commonwith the CAP CAN numbering (on the left), does it.

[budm]

Re: Trying to identify this cap

Well, does it?
Easy enough to actually measure the capacitance.
I wonder what the 1500uF will be marked with '1500' or '152', I would say '152', but who knows for sure.
I will see if I can download the full catalog that will explain the marking system.
http://www.nichicon.co.jp/english/index.html
http://www.nichicon.co.jp/english/products/pdf_dl.html
http://www.nichicon.co.jp/english/pr...lid/index.html

[Behemot]

Re: Trying to identify this cap

Have not seen such high capacity Nichicons before (manufacturers stick with 820uF caps and use D6.3 if anything), but IIRC Samxons ULR 1000/16 have 1000 and 16 there. Should I go look into the car? Got them with me, just been to market yesterday.

[PeteS in CA]

Re: Trying to identify this cap

Per the LF series datasheet, there is no 82uF, 2.5V part in the series.

I've seen the number system Techgeeky mentioned used on ceramic, film, and some tantalum caps, but not on electrolytics. Obviously my experience is not exhaustive. I think I've seen electrolytics as low as 100,000pF (= .1uF), but I seriously doubt an 82pF electrolytic cap has ever been made.

[Behemot]

Re: Trying to identify this cap

Yep, 0.1, 0.22, 0.33 etc. is the usual line. Many manufacturers even skipped everything under 4.7uF recently, fortunatelly I still managed to get Chemi-Cons KMG 0.47 to 4.7.

The smallest polymers I've seen were 10uF IIRC.