Announcement

Collapse
No announcement yet.

FSP PSU and Capxon caps

Collapse
X
Collapse
 
  • Page of 2
  • Filter
  • Time
  • Show
Clear All
new posts
Previous 1 2 template Next
    #1

    FSP PSU and Capxon caps

    Hello again everyone.

    I'm trying to find a replacement cap for a Capxon KF 2200uf 6.3v cap that is/was in a FSP 600w PSU. What makes it so special is that it is 8mm in diameter and where it is sitting in the PSU it needs to have a heatshrink sleeve on it, making it 10mm. Anything larger than that will not fit due to two 45v rectifiers on either side.

    The FSP PSU model is FSX600-GLN.

    I looked up the specs for the KF series but they don't list an 8x20mm diameter cap for above 1000uf at 6.3v (which kinda leads me to believe it isn't even 2200uf). The closest replacement I found with the size constraints was a Nichicon HM.

    I'm thinking the HM will work as the ESR for the 8x20mm Capxon KF (~.15-.20Ohm) seems higher than the Nichicon HM (.16Ohm) but want to make sure I'm thinking this right.

    I had tried searching as I saw someone mentioning working on FSP PSUs before with the Capxon issues but wasn't finding anything more than that.

    Any help is soooooo appreciated! Thanks!!
    Tags: None
    #2
    Re: FSP PSU and Capxon caps

    The HM is .016 ohms.

    I had an FSP 700W a while ago that had those and the HM were are the only thing I could find to fit.
    Ordered the caps but I haven't needed it yet so it's still sitting waiting to be rebuilt.
    .
    These are a custom ordered size so not in data sheet.
    I think the 2200uF is probably right.
    .
    In general KF cross-reference to about Chemicon KY and Nichicon HE.
    Using the KY 8x20mm I'd say this KF's ESR/Ripple is -around- .069/1050.
    HM is serious over-kill but I couldn't find any alternates for that one at the time.
    .
    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

      #3
      Re: FSP PSU and Capxon caps

      Originally posted by envoid View Post
      What makes it so special is that it is 8mm in diameter and where it is sitting in the PSU it needs to have a heatshrink sleeve on it, making it 10mm. Anything larger than that will not fit due to two 45v rectifiers on either side.
      Go with a 10mm cap and forget about the heatshrink sleeve - it's completely useless and does nothing for the cap.
      I've looked at the KF data sheets several times before when I was replacing caps in a monitor, and it seems that they are actually closer in ESR (at least for the sizes I looked at) to United Chemicon KZE and Rubycon ZL. I replaced mine with Panasonic FM, which are slightly better than Chemicon KZE and Rubyocn ZL, and I haven't had any problems.
      But I think that even Chemicon KY and Nichicon HE would also work.

      *** EDIT ***
      It seems that the data sheet for KF on CapXon's website must be newer than what I was looking at when I replaced mine. PCBONEZ is right - CapXon KF is closer in specs to United Chemicon KY and Nichicon HE.
      Last edited by momaka; 06-25-2011, 08:06 PM.

      Comment

        #4
        Re: FSP PSU and Capxon caps

        Nice try but in some positions 10mm are a no-way no-go in this one and the heat-shrink IS needed because some of the caps are right up against energized heatsinks.
        .
        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

          #5
          Re: FSP PSU and Capxon caps

          Originally posted by momaka View Post
          *** EDIT ***
          It seems that the data sheet for KF on CapXon's website must be newer than what I was looking at when I replaced mine. PCBONEZ is right - CapXon KF is closer in specs to United Chemicon KY and Nichicon HE.
          Capxon KF can be hard to cross reference because the can sizes for what ever uF are just plain weird in some cases.
          Not too unusual to have to go up a grade or two just to find one with will work in a good brand.
          .
          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

            #6
            Re: FSP PSU and Capxon caps

            If there is absoloutely nothing else that will fit, then I would use the HM. It may not be an ideal replacment, but it will probably work, although it may make the ripple a bit higher.
            I love putting bad caps and flat batteries in fire and watching them explode!!

            No wonder it doesn't work! You installed the jumper wires backwards

            Main PC: Core i7 3770K 3.5GHz, Gigabyte GA-Z77M-D3H-MVP, 8GB Kingston HyperX DDR3 1600, 240GB Intel 335 Series SSD, 750GB WD HDD, Sony Optiarc DVD RW, Palit nVidia GTX660 Ti, CoolerMaster N200 Case, Delta DPS-600MB 600W PSU, Hauppauge TV Tuner, Windows 7 Home Premium

            Office PC: HP ProLiant ML150 G3, 2x Xeon E5335 2GHz, 4GB DDR2 RAM, 120GB Intel 530 SSD, 2x 250GB HDD, 2x 450GB 15K SAS HDD in RAID 1, 1x 2TB HDD, nVidia 8400GS, Delta DPS-650BB 650W PSU, Windows 7 Pro

            Comment

              #7
              Re: FSP PSU and Capxon caps

              Thanks everyone for the input. And sorry, I'm always off with my decimal places.

              The heatsink isn't charged, it actually gets screwed to the outer shell of the PSU. These rectifiers have pin 2 connected to the back but there is a very thin membrane between the heatsink and rect. The outer pins are grounded so the cap sits next to grounded pins on it, and a grounded heatsink. I wonder though if it is the coils it was being insulated from.

              The pic is from my BB so I apologize in advance. On the left I already replaced one of the KFs with a Panny FM I had. Little bigger and wider wire offset (forgetting the proper word) but it works (i want to add some hot glue on the side to help sturdy it though).

              I just wish they didn't cram that area and I could fit the FM in there with a little insulation...
              Attached Files

              Comment

                #8
                Re: FSP PSU and Capxon caps

                Mine has one that actually touches a heatsink and another that's so close to an xfmr that a 10mm would touch it's coils.
                .
                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

                  #9
                  Re: FSP PSU and Capxon caps

                  Originally posted by PCBONEZ View Post
                  Nice try but in some positions 10mm are a no-way no-go in this one and the heat-shrink IS needed because some of the caps are right up against energized heatsinks.
                  .
                  Even so, couldn't this be done by putting a piece of insulating plastic on the heat sink (the same kind that is used under the power supply PCB)? I've seen it done on other power supplies.

                  Originally posted by PCBONEZ View Post
                  Capxon KF can be hard to cross reference because the can sizes for what ever uF are just plain weird in some cases.
                  Yes, it seems CapXon likes to do that a lot and not just with the KF series. I've seen identical size and voltage KM caps that had different capacitance rating. Also seen it with GL. Really makes me wonder what CapXon did with those. Would be nice to have a capacitance and ESR meter in one of those cases.

                  Comment

                    #10
                    Re: FSP PSU and Capxon caps

                    Originally posted by momaka View Post
                    Even so, couldn't this be done by putting a piece of insulating plastic on the heat sink (the same kind that is used under the power supply PCB)? I've seen it done on other power supplies.
                    If I thought that would work I wouldn't have bought HM, and you know how picky I am about matching specs.
                    .
                    Last edited by PCBONEZ; 06-29-2011, 12:30 AM.
                    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

                      #11
                      Re: FSP PSU and Capxon caps

                      Originally posted by PCBONEZ View Post
                      If I thought that would work I wouldn't have bought HM, and you know how picky I am about matching specs.
                      .
                      Thats funny, I was contemplating it also, just hadn't had the time to see if anything would work. I was pondering maybe electrical tape placed strategically, though I'm also not sure it is insulating from the heatsink but the coils. Or its for nothing at all and just to make it die faster.

                      Comment

                        #12
                        Re: FSP PSU and Capxon caps

                        Originally posted by PCBONEZ View Post
                        If I thought that would work I wouldn't have bought HM, and you know how picky I am about matching specs.
                        .
                        Good point .

                        But still, if this is true:
                        Originally posted by envoid
                        The heatsink isn't charged, it actually gets screwed to the outer shell of the PSU.
                        ... then you don't need to isolate cap from the heatsink.
                        Probably a good idea to isolate it from the inductor/toroid, though (just in case).

                        Personally, I don't think it matters all that much (not for the caps on the secondary side, anyways). The cap has its own insulating sleeve, and if the inductor and/or capacitor should become so hot that the insulating sleeve on the cap burns, then I think you got bigger problems in the PSU to worry about.

                        Comment

                          #13
                          Re: FSP PSU and Capxon caps

                          That's fine for him. - Doesn't help mine.

                          Sleeves are not electrical insulation.
                          A number of cap manufacturers warn against using it as such.
                          .
                          Last edited by PCBONEZ; 06-29-2011, 11:04 PM.
                          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

                            #14
                            Re: FSP PSU and Capxon caps

                            Originally posted by PCBONEZ View Post
                            Sleeves are not electrical insulation.
                            A number of cap manufacturers warn against using it as such.
                            I'll second that. I'm actually fixing an amplifier at the moment that somehow had arcing through the sleeve of a capacitor to a nearby component, as it melted a little hole through the sleeve.

                            Comment

                              #15
                              Re: FSP PSU and Capxon caps

                              Originally posted by PCBONEZ View Post
                              Sleeves are not electrical insulation.
                              A number of cap manufacturers warn against using it as such.
                              .
                              Interesting, didn't know that.

                              I guess electrical tape will have to do then.

                              Comment

                                #16
                                Re: FSP PSU and Capxon caps

                                Tried fitting the 10mm Panny FM last night and it won't go in at all. It got half way and then it was too tight. And this is without any insulating materials around it. So the HM it is. That should get ordered in a few months lol.

                                This thing also has some teapo caps, should I just replace them while I'm in this thing? I read some conflicting threads on here about them. They are 5yrs old? One shows "12/06" on the wrapping.

                                Thanks again everyone!!

                                Comment

                                  #17
                                  Re: FSP PSU and Capxon caps

                                  I wouldn't tear down a PSU just because it has Teapo, but if I have to tear it down and has Teapo I'll replace them while I'm in there.
                                  .
                                  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

                                    #18
                                    Re: FSP PSU and Capxon caps

                                    I might do it anyway then. Better now than do this again later anyway. =)

                                    Comment

                                      #19
                                      Re: FSP PSU and Capxon caps

                                      momaka - heat shrink tubing might be a better choice than electrical tape. It won't leave adhesive goo all over everything.
                                      Stupidity should be a crime, especially for drivers. I have NO patience for them.

                                      Comment

                                        #20
                                        Re: FSP PSU and Capxon caps

                                        Originally posted by delaware74b View Post
                                        momaka - heat shrink tubing might be a better choice than electrical tape. It won't leave adhesive goo all over everything.
                                        Yeah, that's one thing I don't like about electrical tape, too. Cleaning that sticky stuff isn't a lot of fun either. But if you apply it on something that doesn't move a lot and where the tape won't undo itself, then it's okay.
                                        Sometimes, I even burn it with a lighter to make it hard so that it won't undo itself. Helps a little bit, but not that much.

                                        Comment

                                        Previous 1 2 template Next
                                        Working...
                                        X