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parallel high current diodes

Discussion in 'Electronic Design' started by Jamie Morken, Apr 9, 2008.

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  1. Jamie Morken

    Jamie Morken Guest


    For a rectifier rated at 200V and 70Amps RMS current, is it possible to
    parallel multiple diodes (ie two 200V 35Amp diodes) if small series
    resistors are used on each diode to help balance the current as well as
    mounting to the same heatsink to have close temperatures?

    Also some TO-220 and TO-247 packages have two diodes, is it safer to
    parallel these since they will be similar in structure and have very
    close temperatures?

    I would like to be able to use standard throughhole parts rather than
    stud mount diodes, but 200V and 70Amps seems to be pushing it for
    TO-220 and TO-247 package diodes.

  2. Jamie Morken

    Jamie Morken Guest

    Thanks Terry :) AN599 makes it look like not such a bad idea to
    parallel diodes, especially if they are in the same package.

  3. Jamie Morken

    Jamie Morken Guest

    Thanks, digikey has the RURG80600 (80Amps 600V) and several others but
    wasn't able to find the 120Amp one at digikey or

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