Post help identifying capacitors here

[m2farid]

Those one, please. Thanks

[m2farid]

Hi could you please help me identify the capacitors arround bios chips

[DRKNSIDE]

looking for identity and where i can locate one of these capacitors shows 20K 560J E13 or E73 can really tell, Thanks!

[ghost180sx]

Yes, Marcon (''N'') which is a diminutive of Marconi (in honor of Guglielmo Marconi, I suppose) and these are very old capacitors available in stores here in Italy in the era mentioned by PeteS in CA. They are still available as N.O.S. on some shops.

I also reinforce that, given their era, this is not a polymer. I would replace it with a Panasonic FC but also Nichicon PM would be perfect (E.S.R. not too low and capable of handling high frequencies). I would derate and use a 10V replacement.


EDIT: I confirm, electrolytic. As per specifictions in the inventory of a shop which sells N.O.S. parts. Picture attached.

Thanks Hitto & PeteS in CA!
I'll be ordering some nice electrolytics as replacements.

[Hitto]

Yes, Marcon (''N'') which is a diminutive of Marconi (in honor of Guglielmo Marconi, I suppose) and these are very old capacitors available in stores here in Italy in the era mentioned by PeteS in CA. They are still available as N.O.S. on some shops.

I also reinforce that, given their era, this is not a polymer. I would replace it with a Panasonic FC but also Nichicon PM would be perfect (E.S.R. not too low and capable of handling high frequencies). I would derate and use a 10V replacement.


EDIT: I confirm, electrolytic. As per specifictions in the inventory of a shop which sells N.O.S. parts. Picture attached.

[ghost180sx]

Does anybody have any old Marcom data books or data sheets to confirm it's a polymer or what the CFM series was?

My bad, these are made by Marcon, ending with an "n". Marcon Electronics, a former subsidiary of Toshiba Corp, then bought up by United Chemi-Con.
See: https://www.procureinc.com/manufactu...ted_Chemi-Con/

[ghost180sx]

Given the age, if it is an electrolytic I'd suggest Nichicon PS, PM, PJ, or PW series, in that order of preference, whatever fits. I'm not sure whether polymer caps were coming into use in 1996.

Thanks PeteS, that's what my friends in the SGI collector community have done. Then again, some have failed to repair their PSUs or had them fail after a recap. Most of us are flying "flying blind" tho as SGI never released any schematics.

My PSU is working but outputting high ripple. It's very noticeable and was getting worse the more I used my machine, so I took it apart to fix the supply.
This is the only one of three like it in the supply that tested bad with my LCR meter. The other caps in the PSU were getting old but in OK condition and within tolerances.

Does anybody have any old Marcom data books or data sheets to confirm it's a polymer or what the CFM series was? I'd feel better replacing these three with a FP high ripple tolerant and super low ESR variant if that's what these are.

[PeteS in CA]

Given the age, if it is an electrolytic I'd suggest Nichicon PS, PM, PJ, or PW series, in that order of preference, whatever fits. I'm not sure whether polymer caps were coming into use in 1996.

[SMDFlea]

pics would be good

[ghost180sx]

Hey all. I'm recalpping an Artesyn P/N 22943505 PSU with SGI P/N 060-0021-002 Rev A for an Indigo2 IMPACT and have come across some bad caps that I can't identify a replacement for. They're red, very small, made by Marcom. I think they are FP-Caps (functional polymer/solid caps), but Marcom got bought up Nippon Chemi-Con a year before these caps were produced. They are 330uF, 6.3V, 105degC, red in color with a silver "-" stripe, 10x10mm and one of three on the board tested bad with an LCR meter. They are marked "CFM" (the series) and "9614" which I'm told is how Marcom prints the manuf. date of 1996 14th week.
Let me know if you need a pic.

[kalemaroni]

Elite/Chinsan aluminum electrolytic, EH series, 4.7 uF with maybe 20% tolerance, 100 V, rated to 105 C. If you search on the web site, Chinsan uses both 4.7 and 5 to refer to its 4.7 uF caps (and the usual 4R7 in parts numbers). The link in the post above me will get you started on your long, long journey through the Chinsan parts list... it's just a standard low-impedance cap so there are a lot of alternatives.

(Maybe that's a 47 and not a 4.7: the "." might be a reflection.)

Thank you very much

[Bushcat]

Anyone know what the above cap is? Have I not provided enough info?

Elite/Chinsan aluminum electrolytic, EH series, 4.7 uF with maybe 20% tolerance, 100 V, rated to 105 C. If you search on the web site, Chinsan uses both 4.7 and 5 to refer to its 4.7 uF caps (and the usual 4R7 in parts numbers). The link in the post above me will get you started on your long, long journey through the Chinsan parts list... it's just a standard low-impedance cap so there are a lot of alternatives.

(Maybe that's a 47 and not a 4.7: the "." might be a reflection.)

[filmbot]

Nichicon functional polymer, 560 uF, 6.3V

Thanks!

[kasfamily]

Anyone know what the above cap is? Have I not provided enough info?

http://www.chinsan.com/welcome/

[Bushcat]

Anyone able to help fully identify this cap?

Nichicon functional polymer, 560 uF, 6.3V

[filmbot]

Anyone able to help fully identify this cap? Need to get a replacement. It was ripped off a Asus motherboard.

[kalemaroni]

Anyone know what the above cap is? Have I not provided enough info?

[kalemaroni]

4.7uF 100v

(M)105c EH(M)10
9091537 (C)19091

Would like to know what ESR it needs for buying from Digikey/Farnell/Mouser etc.

[SMDFlea]

Looking for help on this - missing from board. I'm new to this so not sure how to interpret.
Thanks

PC210 is 2200 pico farads , 0402 is the size , 25 Volts. You can find capacitor conversion charts online to convert between micro fardas uF , pico farads pF and nano farads nF .

[Major_Custom_Computing]

Looking for help on this - missing from board. I'm new to this so not sure how to interpret.

Thanks