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    Diode performance specification

    Is a fast recovery diodes maximum reverse recovery time the same speed during its max forward current & Repetitive peak reverse voltage or is it much longer than what was specified?
    Last edited by Zak28; 11th September 2019 at 23:07.

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    Re: Diode performance specification

    usually specified on the data sheet, e.g. 125 degC and If = 30A, and dIf/dt = 100A/us ( quite slow ) etc

    you have to read all the fine print carefully...


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    Re: Diode performance specification

    Quote Originally Posted by Easy peasy View Post
    usually specified on the data sheet, e.g. 125 degC and If = 30A, and dIf/dt = 100A/us ( quite slow ) etc

    you have to read all the fine print carefully...
    Most small SMT diodes dont have any charts for recovery time or di/dt.



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    Re: Diode performance specification

    Quote Originally Posted by Zak28 View Post
    Most small SMT diodes dont have any charts for recovery time or di/dt.
    Which is telling you that if those are critical parameters for you, you shouldn’t be using that particular device. It’s like asking what the 0 to 60 acceleration for a Smart Car is. If you’re asking that question, it’s the wrong car. (FYI, it’s double digits).


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    Re: Diode performance specification

    if you are using a small diode in a switching ckt and the data sheet does not give switching information, then you use it at your own risk, other batches may differ significantly from the unique one you try in a single prototype.

    For a more guaranteed outcome you have to buy from a manufacturer who does list these parameters, e.g. ST.com


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