HML1225 Thyristor replacement

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • mediaman083
    New Member
    • May 2021
    • 9
    • USA

    #1

    HML1225 Thyristor replacement

    Hello again folks!

    Need some help finding a suitable replacement for a couple HML1224 thyristor's.

    These aren't manufactured any longer and the only comparable replacement I can find on Digikey is a MCR100-5 A1G.. and wouldn't you know it.. that one is no longer made either.

    This is for a vintage Christmas light chaser function box.
  • stj
    Great Sage 齊天大聖
    • Dec 2009
    • 30978
    • Albion

    #2
    Re: HML1225 Thyristor replacement

    got a datasheet for it?

    Comment

    • mediaman083
      New Member
      • May 2021
      • 9
      • USA

      #3
      Re: HML1225 Thyristor replacement

      Sure do!

      https://pdf1.alldatasheet.com/datash...C/HXL1225.html

      That's what I was trying to go by, but I can't find anything closely comparable. At least not in my limited knowledge.

      Comment

      • CapLeaker
        Leaking Member
        • Dec 2014
        • 8101
        • Canada

        #4
        Re: HML1225 Thyristor replacement

        Try Mouser.
        Mouser #:
        610-BRX49-PB

        Mouser #:
        610-CS92D-TL

        Comment

        • mediaman083
          New Member
          • May 2021
          • 9
          • USA

          #5
          Re: HML1225 Thyristor replacement

          Well, I was hoping to find one that was in stock so I could get them working this year, but I guess with something of this age I can't be super picky!

          Thanks for finding those CapLeaker

          Comment

          • stj
            Great Sage 齊天大聖
            • Dec 2009
            • 30978
            • Albion

            #6
            Re: HML1225 Thyristor replacement

            try a triac

            Comment

            • R_J
              Badcaps Legend
              • Jun 2012
              • 9535
              • Canada

              #7
              Re: HML1225 Thyristor replacement

              Digikey P0102DA 5AL3 ?
              Attached Files

              Comment

              • redwire
                Badcaps Legend
                • Dec 2010
                • 3904
                • Canada

                #8
                Re: HML1225 Thyristor replacement

                I would not use a triac because I have found one of these was multiplexed using the two line sine-wave polarities. Just to get more (colours to control) out of the few wires in the string I guess. They really need to have a fuse in these as well. The one I had gave me the creeps with the skinny wire and messy PCB with no clearances.

                BT149G 600V 0.8A KGA pinout or BT169. Littelfuse seems to have different pinout.

                Comment

                • mediaman083
                  New Member
                  • May 2021
                  • 9
                  • USA

                  #9
                  Re: HML1225 Thyristor replacement

                  Thank you redwire! Those all are in stock and look to be right what I was after. kudos!
                  Last edited by mediaman083; 12-04-2022, 05:07 PM.

                  Comment

                  Related Topics

                  Collapse

                  Working...