fuse or what is it?

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  • msfixit
    New Member
    • Nov 2011
    • 1
    #1

    fuse or what is it?

    I had a power surge and knocked out my pc. The power supply unit(?) has a fuse (looks like one to me) it has wires and caps on it. It was soldered in. It had a heat shrink wrap on it. I am an auto mechanic trying to fix my pc. lol I don't have much know how in the name of parts for a pc. it is a T10AH250V I understand the time delay 10 amp, 250 v, where do I get one and is it a fuse? I do have a f4ah250v, do want to try it if it will mess it up or wont work being a lower amp. Please help! Thanks!!
    Tags: None
    • Dgtech
      E. Technician
      • Apr 2009
      • 1462
      • Steeler
      #2
      Re: fuse or what is it?

      It may work with the lower amperage fuse, however we don't really know what took the fuse out. It either blew cause of the direct surge or because another component has shorted out due to the surge. In that case, it will blow again.

      If that lower fuse is a spare and not needed... what the heck, go ahead and try. At least it's safer than putting a larger one in.
      The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

        Comment

        • jetadm123
          Badcaps Legend
          • Feb 2010
          • 2169
          #3
          Re: fuse or what is it?

          Since you didn't supply a photo, I'm assuming that this is what you're describing:

          http://search.digikey.com/us/en/prod...3481-ND/777448

          Select USPS first class shipping for lowest ship rate.

            Comment

            • kc8adu
              Super Moderator
              • Nov 2003
              • 8832
              • U.S.A!
              #4
              Re: fuse or what is it?

              chect the mov's.bridge, and mosfets for shorts first.
              most surge killed units just lose the 2 mov across the primary caps.they stink too.

                Comment

                • 999999999
                  Badcaps Veteran
                  • Sep 2006
                  • 774
                  • USA
                  #5
                  Re: fuse or what is it?

                  Forgive my silly question but since you didn't come out and state it was... is the fuse blown?

                  Inspect the MOVs, if they are shorted enough to blow the fuse it seems likely they look damaged. If no sign, I'd suspect the Fets (or BJTs on ancient designs) next.

                  More details about the PSU like make and model might help... some of them, especially after they've aged a bit, aren't worth the bother to repair as they're about at end of life anyway.

                  You can find replacements at many random places like hardware stores or possibly radio shack, maybe even Walmart, if you are willing to solder leads onto the ends to put on the PCB w/o a fuse holder.

                    Comment

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