Replacement for SAMWAH WL-Series 100uf 450V

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  • cdrsteve
    Member
    • Aug 2016
    • 18
    • United States
    #1

    Replacement for SAMWAH WL-Series 100uf 450V

    I am looking for a replacement cap:

    SAMWAH
    100uf
    450V
    - 40 - 105c
    WL-Series (Extremely Low Impedance)
    16x40 @ 5mm spacing
    1100-1200 ma

    This cap is from a Samsung BP96-01726B Sub Power Supply board in a 61A750 DLP. I have searched Mouser and DigiKey for suitable replacements compared to WL datasheet specs but no joy. The applicable SAMWAH datasheet does not give any actual impedance specs at this voltage so I am thinking it is not critical ?? Anyone have any experience with this cap and better yet a replacement on this board at (CB800). It is the only one I can't find a suitable sub for. Thanks in advance.
    Tags: None
    • stj
      Great Sage 齊天大聖
      • Dec 2009
      • 31015
      • Albion
      #2
      Re: Replacement for SAMWAH WL-Series 100uf 450V

      upload the datasheet please

        Comment

        • cdrsteve
          Member
          • Aug 2016
          • 18
          • United States
          #3
          Re: Replacement for SAMWAH WL-Series 100uf 450V

          Originally posted by stj
          upload the datasheet please
          As requested. Hope I did it correctly.
          Attached Files

            Comment

            • dmill89
              Badcaps Legend
              • Dec 2011
              • 2534
              • USA
              #4
              Re: Replacement for SAMWAH WL-Series 100uf 450V

              If you believe Samwah's 1100mA ripple spec. (I'm not sure I would take that at face value personally) finding a replacement from a reputable manufacture that matches/exceeds that spec in that case size is extremely difficult/impossible.

              The Rubycon BXW comes in a 16mmX42mm case with a 770mA ripple rating, the Nichicon UCP/UPH come in a 16mmX37.5mm case with a 730mA ripple rating, both have 7.5mm lead spacing though (may or may not be an issue with your application).
              Last edited by dmill89; 08-23-2016, 07:18 PM.

                Comment

                • cdrsteve
                  Member
                  • Aug 2016
                  • 18
                  • United States
                  #5
                  Re: Replacement for SAMWAH WL-Series 100uf 450V

                  Originally posted by dmill89
                  If you believe Samwah's 1100mA ripple spec. (I'm not sure I would take that at face value personally) finding a replacement from a reputable manufacture that matches/exceeds that spec in that case size is extremely difficult/impossible.

                  The Rubycon BXW comes in a 16mmX42mm case with a 770mA ripple rating, the Nichicon UCP/UPH come in a 16mmX37.5mm case with a 730mA ripple rating, both have 7.5mm lead spacing though (may or may not be an issue with your application).
                  Thanks. I had the same thoughts about the ripple specs but also have concerns about using something with a lower rating and not fully understanding the circuit. Guess I will have to take a closer look at the circuit design/layout and see if I can determine if there is some wiggle room in the SAMWAH spec. I have found some of SAMWAH's specs/dims to differ from what is on the datasheets so I would not be surprised if either of the alternatives you sourced would work just fine. I have a "bit" of room to play with as far as a size; maybe 20x45 max, though I might be able to go a bit larger with a less than vertical installation for this device. Not much room between the TV's lower cover and this board (and its components) once installed. I am hoping I might find someone who has solved this problem previously and found a device that works in this position (and continues to work) since these Sammy boards are known for bad caps...... still hoping but, might be time for some careful R&D .

                    Comment

                    • cdrsteve
                      Member
                      • Aug 2016
                      • 18
                      • United States
                      #6
                      Re: Replacement for SAMWAH WL-Series 100uf 450V

                      Originally posted by dmill89
                      If you believe Samwah's 1100mA ripple spec. (I'm not sure I would take that at face value personally) finding a replacement from a reputable manufacture that matches/exceeds that spec in that case size is extremely difficult/impossible.

                      The Rubycon BXW comes in a 16mmX42mm case with a 770mA ripple rating, the Nichicon UCP/UPH come in a 16mmX37.5mm case with a 730mA ripple rating, both have 7.5mm lead spacing though (may or may not be an issue with your application).
                      Just ran across this device on Mouser. Never used this brand before but this might work. What do you think? That is if I can find it in stock!!
                      Attached Files
                      Last edited by cdrsteve; 08-24-2016, 09:24 AM.

                        Comment

                        • cdrsteve
                          Member
                          • Aug 2016
                          • 18
                          • United States
                          #7
                          Re: Replacement for SAMWAH WL-Series 100uf 450V

                          Originally posted by cdrsteve
                          Just ran across this device on Mouser. Never used this brand before but this might work. What do you think? That is if I can find it in stock!!
                          Looks like the Lelon is in "Unobtainous" status so I am going with a Rubycon 450TXW100MEFC18X35. Physical size (can make it work), specs (ripple @ 105c/100kHz = 1.11A) should meet the need. Will report back in case anyone is interested! Will provide list of all caps I used to rework these two boards if everything performs as expected. Thanks.
                          Attached Files

                            Comment

                            • cdrsteve
                              Member
                              • Aug 2016
                              • 18
                              • United States
                              #8
                              Re: Replacement for SAMWAH WL-Series 100uf 450V

                              Recap complete. Set is working like new.... possibly better than when new . Amazing what a few "good" caps and a new DMD chip can do to improve image quality on this old DLP!

                                Comment

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