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PCB current capacity

Discussion in 'Electronic Basics' started by Rodney Davies, Aug 9, 2008.

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  1. Can someone tell me how much current a 1mm wide trace on a PCB can handle?
    Thanks

    Rod
     
  2. Jeff Higgins

    Jeff Higgins Guest

    Not certain about 1mm wide trace but maybe these will help.

    Google search : pcb+current+capacity leads to:
    http://tinyurl.com/5qv77q

    which leads to:
    WikiBooks Practical Electronics/PCB Layout/Trace Current Capacity
    http://tinyurl.com/6fmryv

    and:
    PCB Trace Width Calculator
    http://tinyurl.com/yoqkje
     
  3. Jeff Higgins

    Jeff Higgins Guest

    which leads to:

    IPC-2221.pdf
    http://tinyurl.com/5h8vw9

    Shortcomings of the IPC-2221 Current Capacity Guidelines
    http://tinyurl.com/63m25x

    New Correlations Between Electrical Current
    and Temperature Rise in PCB Traces (t341.pdf)
    http://tinyurl.com/5mdznl

    and on, and ...
    Sorry, I'm done now, just got interested.
     
  4. Thanks. Got what I needed.

    Rod

     
  5. neon

    neon

    1,325
    0
    Oct 21, 2006
    have you considered the depth? then is the quality of of the board itself. it is a valid question but inpossible to answer .
     
  6. Eeyore

    Eeyore Guest

    There are various online calculators, just use Google imaginatively. There is
    no fixed figure, it depends on the temperature you you can accept.

    Graham
     
  7. Eeyore

    Eeyore Guest

    Not an advisable method at all.

    Graham
     
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