Goofy non-standard CrapXon

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  • Shocker
    Banned
    • Dec 2011
    • 635

    #1

    Goofy non-standard CrapXon

    I have an otherwise decent 12V 3A plugpack let down by craps. (Oh so familiar...)

    What's bugging me is not that the caps are crap, but that the primary cap is a custom-sized CapXon KW. It's 68uF 400V and 18mmD x 25mmL. It's bulging on top and leaking around the positive lead. The plugpack wouldn't start up, and I'm pretty sure this is to blame. A longer cap would be blocked by the fuse and inlet.

    The secondary caps are 2 x CapXon KF 1000uF 16V 10mm and 1 x Teapo SC 680uF 16V 8mm. None of them are bulged, but best to play it safe.

    There's also a Teapo SEK 100uF 25V 6.3mm near the transformer which I figure should be replaced with a low ESR cap. Anyway, the big cap is the main problem. Curiously, CapXon has the size mentioned in the KM series - yeah, like that's gonna help . I then looked at SamXon's KM series, but that didn't take me anywhere. Guess what the only other manufacturer with a 68uF 400V 18mmD x 25mmL general purpose cap was???
  • mockingbird
    Badcaps Legend
    • Dec 2008
    • 5484
    • -

    #2
    Re: Goofy non-standard CrapXon

    Rubycon and Panasonic both show an 18x25mm part:

    http://www.newark.com/rubycon/450txw...ial/dp/39T8985
    http://www.newark.com/panasonic/eeue...ial/dp/39P9916

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    • Shocker
      Banned
      • Dec 2011
      • 635

      #3
      Re: Goofy non-standard CrapXon

      I'll consider them. But guess who I was thinking of when I wrote:

      Guess what the only other manufacturer with a 68uF 400V 18mmD x 25mmL general purpose cap was???

      Comment

      • Shocker
        Banned
        • Dec 2011
        • 635

        #4
        Re: Goofy non-standard CrapXon

        It appears to have provision for a 5V output as well. There is a second output on the transformer and an empty position for a second rectifier. Curiously, the 5V and 12V lines on the PCB are linked for 12V only. Come to think of it, I could probably modify the unit for dual outputs. Only real difficulty would be finding a second pi coil. The 12V rectifier is SB10100FCT.

        There is a bit of discolouration of the PCB tracks on the primary side (the secondary looks fine), so maybe it was too hot for the cap. The switcher is a PFF6N60.

        The dual-outputs feature would of course be used to power a HDD. This unit actually came with a HDD enclosure. When it wouldn't start up I cracked it open and used a different PSU.

        Comment

        • kc8adu
          Super Moderator
          • Nov 2003
          • 8832
          • U.S.A!

          #5
          Re: Goofy non-standard CrapXon

          or if in 120vac area use a 200-250v cap.
          had one for my maha c777+2 give up.since i dont care about running from 220v i used 2 33@250 paralell.
          close enough for gov work.

          Comment

          • Rulycat
            Badcaps Veteran
            • Apr 2010
            • 724
            • United Kingdom

            #6
            Re: Goofy non-standard CrapXon

            Originally posted by Shocker
            I'll consider them. But guess who I was thinking of when I wrote:
            Fukyoo?

            Comment

            • Shocker
              Banned
              • Dec 2011
              • 635

              #7
              Re: Goofy non-standard CrapXon

              You got it!!!

              MH series to be exact.

              Comment

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