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IRF 520 VS IRF 520N

Discussion in 'Amateur Radio Gear Swapshop' started by Charles Brown, Feb 5, 2018.

  1. Charles Brown

    Charles Brown Member

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    Seems the 520N is getting harder to get. My question,there are mods out there to upgrade the Cobra 29 LTD CLASSIC to the 520N. Can I use the 520 in this application?


     

  2. Tallman

    Tallman W9WDX Amateur Radio Member, KW4YJ EXTRA class

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    The specification sheets do not distinguish between the 520N and the 520. I think they are the same part. The "N" could be a revision of the older style.
     
  3. LeapFrog

    LeapFrog Sr. Member

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    I think the IRF520N is a brand name or maybe it stands for "N-Channel MosFet".
    Mouser might have those.

    The new "3rd generation" ones look promising SiHF520, and also "ERF2030+"; they might work as a replacement.
     
    #3 LeapFrog, Feb 6, 2018
    Last edited: Feb 6, 2018
  4. ButtFuzz

    ButtFuzz Anti-BS Advocate ● N4REV ● Reverend Doctor

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    Or simply "N"ew.
     
  5. LeapFrog

    LeapFrog Sr. Member

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    For anyone considering the new "ERF2030+ by EKL/Palomar" as a replacement.
    From my experience they require greater "turn-on voltage" or bias voltage than the IRF520, so while it is a pin for pin match.. you may not get acceptable results until you increase the bias voltage..
     
  6. ExitThirteen

    ExitThirteen Grumpy and Cranky

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    The IRF520N is a "more rugged" version of the IRF520, it has higher drain current spec than the IRF520. The IRF520 can be used as a substitute for the IRF520N in the Cobra 29 in this case.


    ~Cheers~
     
    Shadetree Mechanic and LeapFrog like this.
  7. LeapFrog

    LeapFrog Sr. Member

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    Thank You Exit13
     
  8. LeapFrog

    LeapFrog Sr. Member

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    Well guys, nobody likes to be wrong, but part of being responsible is "owning up to it" when you make an error.
    My measurements have been off by an unknown margin of error, for a little while due to a failing 9 volt battery in my multi-meter...

    So please disregard my comment about the bias voltage, I'll post more when I know more about this, and after I have an accurate meter in my hands.

    My apologies, and best regards to all.
     
    #8 LeapFrog, Feb 12, 2018
    Last edited: Feb 13, 2018
    binrat likes this.

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