Can I substitute....

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • milkster
    New Member
    • Feb 2009
    • 8
    #1

    Can I substitute....

    I have 4 bad Nichicon caps to replace on an old Compaq system. This will be my first recap and I have a newb questions which I hope you will be able to help me out with.

    The caps that need to be replaced are 2200uF 6.3V by Nichicon. All these are 10mm x 20mm. Should I try to replace them with identical Nichicon ones or the brand doesn't matter?
    I found 1 local place which has Nichicon 2200uF 6.3 but they are 8mm x 20mm. Can I use these instead of the 10mm x 20mm?

    Thanks
    Tags: None
    • yyonline
      Badcaps Veteran
      • Jul 2009
      • 692
      • USA
      #2
      Re: Can I substitute....

      Brand doesn't necessarily matter. You want a reliable brand, but each brand has different series, and the specs for each can vary.

      What series are the original Nichicon caps? Nichicon uses 2 letters for their series, usually. They are usually marked with the series and tolerance. For example, nichicon HD are marked HD(M). HD is the series. M is the tolerance, which is 20%. If you can share the series, someone can chime in and advise some suitable replacements.

        Comment

        • ratdude747
          Black Sheep
          • Nov 2008
          • 17136
          • USA
          #3
          Re: Can I substitute....

          replace ALL bad brand caps. that way:

          1. if any have dried and failed that way, you're covered

          2. if any more were to fail, it is already fixed.
          sigpic

          (Insert witty quote here)

            Comment

            • retiredcaps
              Badcaps Legend
              • Apr 2010
              • 9271
              #4
              Re: Can I substitute....

              Is this by any chance a small form factor type Compaq? I have one with 4 bad caps, but haven't gotten around to ordering replacements yet. Mine are Nichicon caps. HM(M) if I recall correctly. See my thread called

              Compaq EVO D510 - D51U Ultra-Slim Desktop

              Originally posted by milkster
              I have 4 bad Nichicon caps to replace on an old Compaq system. This will be my first recap and I have a newb questions which I hope you will be able to help me out with.

              The caps that need to be replaced are 2200uF 6.3V by Nichicon. All these are 10mm x 20mm. Should I try to replace them with identical Nichicon ones or the brand doesn't matter?
              I found 1 local place which has Nichicon 2200uF 6.3 but they are 8mm x 20mm. Can I use these instead of the 10mm x 20mm?

              Thanks
              --- begin sig file ---

              If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

              We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

              Please do not post inline and offsite as they slow down the loading of pages.

              --- end sig file ---

                Comment

                • milkster
                  New Member
                  • Feb 2009
                  • 8
                  #5
                  Re: Can I substitute....

                  The series are HM(M). And, yes this is a small form Compaq Evo.

                  The part number which i'm able to pick up locally is UHM0J222MPD6 -> thats for the 8mm x 20mm

                  The originals are UHM0J222MPD (10mm x 200mm)

                  Attached is a pic of the bad caps....
                  Attached Files
                  Last edited by milkster; 05-27-2010, 07:55 AM.

                    Comment

                    • milkster
                      New Member
                      • Feb 2009
                      • 8
                      #6
                      Re: Can I substitute....

                      I have also found some Panasonic caps.

                      Can I use this Panasonic Cap as a replacement? ECA-0JM222
                      Here is the spec for this one: ECA-0JM222 Data Sheet

                        Comment

                        • yyonline
                          Badcaps Veteran
                          • Jul 2009
                          • 692
                          • USA
                          #7
                          Re: Can I substitute....

                          Originally posted by milkster
                          I have also found some Panasonic caps.

                          Can I use this Panasonic Cap as a replacement? ECA-0JM222
                          Here is the spec for this one: ECA-0JM222 Data Sheet
                          No. Panasonic are reliable caps, but this particular series isn't good enough. The series is only rated at 85°C, and doesn't appear to be low ESR. You need 105°C and Ultra low ESR caps.

                          Nichicon HM in 8mm are also not good enough. They are smaller size, so they will have higher ESR and lower ripple current. Motherboard capacitors are a bit of a specialized item, and many people have trouble finding a local source.

                          The owner of the site sells suitable replacements, so that's an option. I order from Topcat all the time, highly recommended. He sells Rubycon MBZ which is an excellent replacement for HM:
                          https://www.badcaps.net/store/produc...products_id=33

                          Also Samxon GC if you're looking for something a bit cheaper:
                          https://www.badcaps.net/store/produc...products_id=62

                          Replace all the HM caps, not just the failed ones. HM caps had a manufacturing defect that was corrected by 2005. Anything before that is suspect.

                            Comment

                            • PCBONEZ
                              Grumpy Old Fart
                              • Aug 2005
                              • 10661
                              • USA
                              #8
                              Re: Can I substitute....

                              He's right.
                              Those Panasonic don't have low enough ESR.

                              All these are good replacements [Check diameter]:
                              Rubycon MBZ or MCZ
                              Sanyo WG [Sanyo is now Suncon, series is still WG]
                              Panasonic FL or FJ
                              Nichicon HM or HN [with date code 2005 or newer - 2001 thru 2004 were bad]
                              Mann-Made Global Warming.
                              - We should be more concerned about the Intellectual Climate.
                              -
                              Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                              - Dr Seuss
                              -
                              You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                              -

                                Comment

                                • PCBONEZ
                                  Grumpy Old Fart
                                  • Aug 2005
                                  • 10661
                                  • USA
                                  #9
                                  Re: Can I substitute....

                                  And yes, replace all the HM even if they aren't bloated yet.
                                  Mann-Made Global Warming.
                                  - We should be more concerned about the Intellectual Climate.
                                  -
                                  Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                                  - Dr Seuss
                                  -
                                  You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                                  -

                                    Comment

                                    • delaware74b
                                      Badcaps Veteran
                                      • Apr 2009
                                      • 628
                                      • USA
                                      #10
                                      Re: Can I substitute....

                                      +2. I've dealt with those boards and they're like the Dell SFF models. They cook the caps to death. I was 'gifted' with 4 D510 SFF's and all had to be recapped to operate. I used Panasonic FC and FM for replacements, 100uf and larger.
                                      Stupidity should be a crime, especially for drivers. I have NO patience for them.

                                        Comment

                                        • PCBONEZ
                                          Grumpy Old Fart
                                          • Aug 2005
                                          • 10661
                                          • USA
                                          #11
                                          Re: Can I substitute....

                                          In so far as ESR.........

                                          FC is under rated except for maybe the caps 330uF and under.
                                          [Some boards 470uF and under.]


                                          FM might be okay in some places but are under rated at least for Vcore and RAM.
                                          The 2200uF 6.3V appear to be in Vcore.

                                          It will probably at least work for a while but you are running with excess noise in the power plane and you risk poor performance, possibly loosing data and/or overheating MOSFETS.

                                          .
                                          Mann-Made Global Warming.
                                          - We should be more concerned about the Intellectual Climate.
                                          -
                                          Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
                                          - Dr Seuss
                                          -
                                          You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
                                          -

                                            Comment

                                            Previous template Next

                                            Related Topics

                                            Collapse
                                            • DrewPhillips
                                              Capacitor Diarrhea - Nichicon PL Series
                                              by DrewPhillips
                                              Hello All, I have on the bench a couple of PSU's which have some failed Nichicon PL series caps. They didn't "puke" their guts through the top, but instead "diarrhea'ed" corrosive brown electrolyte through the bottom, down the legs and onto the board. On one cap, the electrolyte rotted the cap right off the board leaving 2 little stubs, and also corroded a trace on the foil side.

                                              The PSU's are Power-One MAP series and are ringing-choke topology. The semiconductors have date codes in 1993. The PSU's were used in a commercial application, fan-cooled. They had failed...
                                              03-02-2025, 10:18 PM
                                            • SwedishDiesel
                                              Dell Optiplex GX260 - Advice Needed for Polymodding Motherboard
                                              by SwedishDiesel
                                              Howdy folks,

                                              I have an Optiplex GX260 that blew a couple of those troublesome Nichicon HM series (ultra low ESR) electrolytic capacitors. Because said caps are obsolete, they are pretty much impossible to find on the market; I did find a listing for some but I believe they are counterfeit. I feel the easiest thing to do would be to replace all the blown caps with polymer ones. I am by no means an expert in electronics, and I've found a fair bit of conflicting information, so any guidance or confirmation would be greatly appreciated. While from a practical standpoint it's not worth...
                                              10-30-2021, 12:47 AM
                                            • nick3092
                                              Mid/late 80's Nichicon Yellow Caps
                                              by nick3092
                                              I recently acquired a set of Bose Roomate speakers from the mid to late 80's. Basically the right speaker cabinet is completely passive, and the left one has the power transformer and amplifier circuit in it. Out of curiosity, I opened it up to see what the circuit looked like. Looks like they used all Nichicon VX (2x 4700uF/16v for smoothing off the bridge rectifier), a couple random Nichicon SE series sprinkled on the board, and what really caught my eye - 2 yellow sleeved Nichicon caps (both 1uF/50v with no real series marking. Below are pictures of the caps. The only thing not shown in these...
                                              08-28-2022, 03:56 PM
                                            • chth96
                                              Is there any datasheet for nichicon RT(M) series?
                                              by chth96
                                              A few days ago,I destroyed one of my japanese retro game console by pluging it to 220v outlet.
                                              https://www.badcaps.net/forum/troubl...e-been-blew-up

                                              and I finally fixed​ this retro game console by soldering varistor and glass fuse.

                                              But I noticed that When I measure voltage of PSU's 5pin connector, it is 8.80-9.07v, 5.13v,3.40-3.48v,GND,GND instead of its rated voltage of 9v 5v 3v GND GND.
                                              I have spare console...
                                              11-28-2023, 03:36 AM
                                            • cloppy007
                                              [MSI KT3 Ultra ARU] Advice on capacitor choice
                                              by cloppy007
                                              I've found out that the all the Nichicon HM(M) caps on this board are faulty and need replacement. However, I didn't plan in advance and I don't have good replacement caps.

                                              The original values are 2200uF, 6.3V, 5mm pitch. According to the datasheet, the rated impedance should be around 13-18 uOhms.

                                              There are 8 of them, 3 to the left of the CPU socket and 5 on the bottom, very close to the northbridge. They are all connected, according to my multimeter.



                                              I think I recall hearing that I don't have to use the same capacitance for in series...
                                              08-21-2023, 03:18 PM
                                            • Loading...
                                            • No more items.
                                            Working...