Unidentified Diode

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  • jackcaper
    New Member
    • Oct 2023
    • 8
    • Germany
    #1

    Unidentified Diode

    Hi everybody,
    can anybody please help me identify this diode?
    It is somehow attached to the HDMI port of an Asrock VisionX 471D (ASR1501, HM87-MXM).
    Thanks
    1 Photo
    Tags: None
    • Answer selected by jackcaper at 06-27-2024, 06:03 PM.
      harp
      Badcaps Veteran
      • Jun 2022
      • 644
      • Planet Earth
      Identified as PMBS3904 NPN transistor
      Attached Files
        • Selected Answer

        Comment

        • BrandonCarriveau
          New Member
          • Jun 2024
          • 1
          • United States
          #2
          I am 80% sure that is not a diode. That is a transistor. Unfortunately that is all the help I can provide.

            Comment

            • harp
              Badcaps Veteran
              • Jun 2022
              • 644
              • Planet Earth
              #3
              Identified as PMBS3904 NPN transistor
              Attached Files
                • Selected Answer

                Comment

                • stj
                  Great Sage 齊天大聖
                  • Dec 2009
                  • 31260
                  • Albion
                  #4
                  or it could be an 11v zener
                  BZX84-A11

                    Comment

                    • jackcaper
                      New Member
                      • Oct 2023
                      • 8
                      • Germany
                      #5
                      Thanks to all!
                      BrandonCarriveau set me on the right track, so i could figure it out myself before i read harp​'s reply.

                        Comment

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