Mosfets equivalents

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  • Venomus28
    Member
    • Oct 2016
    • 38
    • Albania
    #1

    Mosfets equivalents

    Hello forum i've found out that both mosfets of my monitor are bad
    The monitor is samsung syncmaster 940T
    The writing on them are
    4502C
    AA65PE
    Could someone help me ?
    Tags: None
    • budm
      Badcaps Legend
      • Feb 2010
      • 40746
      • USA
      #2
      Re: Mosfets equivalents

      AF4502
      http://www.ebay.com/itm/2PCS-N-P-Cha...-/261053657438

      https://cdn.badcaps-static.com/pdfs/...bcf202ff11.pdf
      Never stop learning
      Basic LCD TV and Monitor troubleshooting guides.
      http://www.badcaps.net/forum/showthr...956#post305956

      Voltage Regulator (LDO) testing:
      http://www.badcaps.net/forum/showthr...999#post300999

      Inverter testing using old CFL:
      http://www.badcaps.net/forum/showthr...er+testing+cfl

      Tear down pictures : Hit the ">" Show Albums and stories" on the left side
      http://s807.photobucket.com/user/budm/library/

      TV Factory reset codes listing:
      http://www.badcaps.net/forum/showthread.php?t=24809

        Comment

        • Venomus28
          Member
          • Oct 2016
          • 38
          • Albania
          #3
          Re: Mosfets equivalents

          Thank you *budm*
          I had a walk to the store where i used to buy capacitors, fuses and other supplies and i found this 4502C
          AA6DA

          Do you think it will be the same ?

            Comment

            • PeteS in CA
              Badcaps Legend
              • Aug 2005
              • 3582
              • USA, Unsure of Planet
              #4
              Re: Mosfets equivalents

              "AA65PE" and "AA6DA" are probably date/lot codes. So they're probably the same part, but from different batches. There's no standard format these days, but various manufacturers put codes on their ICs and MOSFETs that may identify the year, week, country, and fab where the device was made (I know STMicro encodes all that on their TO-220 power MOSFETs, and I think IR did as well).

              20 or 30 years ago it was common to have just a simple 4 digit date code - for example, "8926" would mean the 26th week of 1989. I think that type of date code is still used by some manufacturers of various parts and of printed circuit boards. What really feels weird is to look at parts in a really old piece of test equipment and see a date code from 1969 or 1971.
              PeteS in CA

              Power Supplies should be boring: No loud noises, no bright flashes, and no bad smells.
              ****************************
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                Comment

                • Venomus28
                  Member
                  • Oct 2016
                  • 38
                  • Albania
                  #5
                  Re: Mosfets equivalents

                  Thank you
                  Id get them tomorrow or probably one of these days
                  I'll keep you posted
                  Thanks again

                    Comment

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