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Using a PCB as a heatsink

Discussion in 'Electronic Design' started by Mike Noone, Feb 14, 2007.

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  1. John  Larkin

    John Larkin Guest

    Diamond is of course the best, better than any metal. BeO is about as
    good as aluminum, and AlN isn't too far behind. Silica and alumina are
    roughly 10:1 worse.

  2. John  Larkin

    John Larkin Guest

    The thermal conductivity of pure aluminum is 237 w/(m-k). FR4 is 0.29.

    That's a ratio of over 800:1.

    Lienhard and Lienhard's excellent Heat Transfer Handbook is
    downloadable, free.

  3. MassiveProng

    MassiveProng Guest

  4. Rich Grise

    Rich Grise Guest

    So, for once I got one right? O Frabjous Day, Callooh! Callay! ;-)

  5. John  Larkin

    John Larkin Guest

    Yup, if you accept that 800:1 is "not a lot worse."

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