What choke is this?

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  • Dukenukemx
    Senior Member
    • Nov 2012
    • 51
    • USA

    #1

    What choke is this?

    Trying to fix an iPhone XR and some components came off really easily and I'm trying to replace them. I know this is a common mode choke but what do I buy exactly to replace it?
    https://www.mouser.com/ProductDetail...Y4s0uzrA%3D%3D
    Click image for larger version

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  • Answer selected by Dukenukemx at 11-29-2025, 09:03 PM.
    mon2
    Badcaps Legend
    • Dec 2019
    • 14988
    • Canada

    This will be a drop in replacement:

    https://www.mouser.com/ProductDetail...u0ZXyyRg%3D%3D

    Comment

    • mon2
      Badcaps Legend
      • Dec 2019
      • 14988
      • Canada

      #2
      You need to apply a part with the same physical size; same pinout and proper cutoff frequency. The original was rated for mipi dsi speeds to allow for the UHD LCD to function so it is not 100Mhz rated.

      Post a clear screen grab of the schematic showing this part. It should offer full details on the size. We use parts from Kingcore (Taiwan) but there are other vendors for the same parts.

      Comment

      • Dukenukemx
        Senior Member
        • Nov 2012
        • 51
        • USA

        #3
        I don't see anything else to go by. Here's the page I got from the schematic and the schematic itself. I'm not good at reading schematics. Hopefully there's no rules against uploading schematics?
        Attached Files

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        • mon2
          Badcaps Legend
          • Dec 2019
          • 14988
          • Canada

          #4
          This will be a drop in replacement:

          https://www.mouser.com/ProductDetail...u0ZXyyRg%3D%3D

          Comment

          • Dukenukemx
            Senior Member
            • Nov 2012
            • 51
            • USA

            #5
            Originally posted by mon2
            This will be a drop in replacement:

            https://www.mouser.com/ProductDetail...u0ZXyyRg%3D%3D
            Thank you! No idea how you figured it out from the schematics?

            Comment

            • mon2
              Badcaps Legend
              • Dec 2019
              • 14988
              • Canada

              #6

              Click image for larger version

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              Key points from the schematic:

              1) physical size is '0403' - many vendors offer this footprint for the EMI filter / choke. This one is critical to match.

              2) Cutoff frequency is 7Ghz. 100% sure that the Apple design does not operate at this high clock speed but we are attempting to match the specs.

              3) Current support is @ 0.05mA. No issue to match this value.

              4) Filter presents a 35R ohms resistance to filter out noise; else is like a conductor. Matched.

              5) The linked part meets / exceeds all of these specs and is from their current 'TCM' series. Perhaps 'TAM' was also there product or is a typo in the schematic but many many vendors can replace this component. Popular use for MIPI camera / display / USB 3.x high data rate filtering.

              Comment

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