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PURELan 24 Port Switch with Burst Caps.

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    #1

    PURELan 24 Port Switch with Burst Caps.

    Hi,

    just looking for a little assistance.

    I have a 24 Port PURELan switch, it recently died (no power) i opened the device up to find burst capacitors, Ive been exposed to this issue many times before dealing with Dell desktops.

    I am looking to replace the capacitors on the switch but i am a bit unsure as to what type/version is required.

    The affected caps are 2200чF 6.3v
    Im afraid thats the only info i can give.

    I am looking to purchase the caps from maplin.

    If anyone could point out if there is any suitable replacements on this page:
    http://www.maplin.co.uk/Search.aspx?...6v&menul1=1697
    it would be very helpful

    I have uploaded an image of the device below




    Any help appreciated,

    Kind Regards,

    M
    Last edited by spook202; 09-12-2008, 11:27 AM.
    Tags: None
    #2
    Re: PURELan 24 Port Switch with Burst Caps.

    The device looks like it was not breathing properly and overheated around the power section in your picture.
    The exact same parts or a replacement of the same grade would be acceptable but the switch should be kept cooler.
    I often walk into an office and see this kind of stuff all buried under things in a storage closet, forgotten and hot, until they malfunction.
    Jim

    Comment

      #3
      Re: PURELan 24 Port Switch with Burst Caps.

      I can't see in photo clearly but I can tell they are Nichicon HN or HM series.
      - The (M) is just the tolerance, not part of the series name.
      They were defective from about 2002 to 2004, or 2005.

      So far as original ratings go:

      If those are HN:
      2200uF 6.3v 10x16mm - ESR=.011 - Ripple=2280
      2200uF 6.3v 10x20mm - ESR=.010 - Ripple=2900

      If those are HM:
      2200uF 6.3v 8x20mm - ESR=.016 - Ripple=1950
      2200uF 6.3v 10x16mm - ESR=.018 - Ripple=2000
      2200uF 6.3v 10x20mm - ESR=.013 - Ripple=2550

      The ones marked HD should not need replaced unless heat or the other caps going bad took them out.

      .
      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

        #4
        Re: PURELan 24 Port Switch with Burst Caps.

        .
        Last edited by spook202; 09-12-2008, 01:39 PM.

        Comment

          #5
          Re: PURELan 24 Port Switch with Burst Caps.

          Impressive eye for detail jim.

          This is the cabinet the switches are stored in.


          (I didnt set it up, i only get called when things dont work )

          Cheers for the info Bones, al pop into some shops and buy some tomos. dont have the switch with me so cant confirm what series of caps it uses.
          Ta much,

          M

          Comment

            #6
            Re: PURELan 24 Port Switch with Burst Caps.

            I see no suitable replacements at Maplin.
            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

              #7
              Re: PURELan 24 Port Switch with Burst Caps.

              just use Panasonic FM or FC from RS
              capacitor lab yachtmati techmati

              Comment

                #8
                Re: PURELan 24 Port Switch with Burst Caps.

                sorry, I'm new to badcaps. By 'RS' i assume you mean radioshack?

                Im in scotland unfortunately we dont have any radioshacks, we usualy just go to maplin.

                would anyone be able to confirm if this would be suitable?

                http://cgi.ebay.co.uk/25-pcs-6-3V-22...742.m153.l1262

                Thanks,

                M

                Comment

                  #9
                  Re: PURELan 24 Port Switch with Burst Caps.

                  no i meant http://www.rs-components.co.uk/
                  capacitor lab yachtmati techmati

                  Comment

                    #10
                    Re: PURELan 24 Port Switch with Burst Caps.

                    spook202
                    What country are you in?
                    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: PURELan 24 Port Switch with Burst Caps.

                      If you are in the US there is Digikey.
                      They also have FM and FC.
                      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

                        #12
                        Re: PURELan 24 Port Switch with Burst Caps.

                        I'm in Scotland, UK.

                        Cheers for the link willawake.

                        Comment

                          #13
                          Re: PURELan 24 Port Switch with Burst Caps.

                          Sorry, missed 'Scotland' up above.

                          Those KY series are:
                          10x25mm - ESR=.042 - Ripple=1650

                          Don't forget to look at the diameter.
                          10mm may not fit where an 8mm was.
                          10mm have 5mm lead spacing and 8mm has 3.5mm lead spacing. (Usually)
                          -
                          If height matters (like to put the top back on the box) then you should look at that too.

                          In comparing:
                          For ESR smaller values is better
                          For Ripple larger values is better

                          KY are not as good a grade as the originals.
                          Might work but I would look for better.

                          If you are going with RS then FM is better grade than FC.
                          -
                          These are equal to of better than HN/HM grade.
                          http://cgi.ebay.com/12-Panasonic-M-F...mZ290209644527
                          http://cgi.ebay.com/10-Sanyo-WG-6-3V...mZ290209642066
                          I'm sure there are others. I only took a quick look.

                          .





                          .
                          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: PURELan 24 Port Switch with Burst Caps.

                            Cheers for all the help lads.

                            Bones, i bought the panasonic ones

                            al let you know if my fix is successful

                            Cheers again.

                            M

                            Comment

                              #15
                              Re: PURELan 24 Port Switch with Burst Caps.

                              If this is a power supply then replacing the failed capacitors should easily solve the problem.

                              Power supplies with their normal PCBs are very easy to recap even with some standard solder wick and a weaker soldering iron, since they are not multi-layer.
                              My gaming PC:
                              AMD Phenom II X6 1100T Black Edition 3.3GHz Six-Core CPU (Socket AM3)
                              ASUS M4A77TD AMD 770 AM3 Motherboard
                              PowerColor AMD Radeon RX 480 8GB GDDR5 PCI-Express x16 3.0 Graphics Card
                              G.SKILL Value Series 16GB DDR3-1333 RAM (4x4GB dual channel)
                              TOSHIBA DT01ACA200 2TB 3.5" SATA HDD (x2)
                              WD Caviar Green WD20EARX 2TB 3.5" SATA HDD
                              ASUS Xonar DG 5.1 Channel PCI sound card
                              Antec HCG-750M 750W ATX12V v2.32 80 PLUS BRONZE Power Supply
                              Antec Three Hundred Mid-Tower Case
                              Microsoft Windows 10 Pro 64-bit
                              Microsoft Windows 7 Ultimate SP1 64-bit

                              Comment

                                #16
                                Re: PURELan 24 Port Switch with Burst Caps.

                                It's a network switch but those are single layer PCB too.
                                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

                                  #17
                                  Re: PURELan 24 Port Switch with Burst Caps.

                                  Originally posted by spook202
                                  Cheers for all the help lads.

                                  Bones, i bought the panasonic ones

                                  al let you know if my fix is successful

                                  Cheers again.

                                  M
                                  I'm having a problem with a similar piece of equipment: https://www.badcaps.net/forum/showthread.php?t=5837

                                  Did you ever try the PSU without load? did it work or just sit there ticking like mine...?
                                  "Tantalum for the brave, Solid Aluminium for the wise, Wet Electrolytic for the adventurous"
                                  -David VanHorn

                                  Comment

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