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Thread: ferrite bead teensy 3.x

  1. #1

    ferrite bead teensy 3.x

    hi, I am working on a teensy 3.5 and is there any recommended dc resistance value and frequency for the 600 and 120 ferrite beads on the teensy 3.5?

  2. #2
    Senior Member
    Join Date
    Apr 2019
    Posts
    142
    It's odd that you are asking about the DC resistance. This is usually low around 1ohm and not really a significant factor (unless you're dealing with significant currents). You know that 600 and 120 refer to the impedance at 100MHz?

    https://datasheet.lcsc.com/szlcsc/Su...01TF_C1017.pdf

  3. #3
    Senior Member
    Join Date
    May 2015
    Location
    USA
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    860
    Depends on how much current you expect to draw - but matching the physical size and 100Mhz rating of the teensy ones is a reasonable choice.

    Physically larger sizes will provide more noise filtering with the same DC resistance. How important this is depends on the application.

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