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July 2001

DesignerCouncil@IPC.ORG

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Subject:
From:
Doug Brooks <[log in to unmask]>
Reply To:
DesignerCouncil E-Mail Forum.
Date:
Mon, 2 Jul 2001 14:14:47 -0700
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There is no original formula, per se.
But, UltraCAD has derived some formulas based on two data sources, of which
the IPC data is one.
See the articles (I think there are at least three of them) on our web page
(http://www.ultracad.com) and the calculator
PCBTEMP.exe


Doug Brooks

At 02:08 PM 7/2/2001 -0500, Chris Robertson wrote:
>Oh, knowledgeable ones.
>
>What exactly is the formula behind the current - trace width
>table? (Per Deg C)
>
>CR

***********************************************************
Doug Brooks' book, "Electrical Engineering for the Non-Degreed Engineer is
now in its 3rd printing. Learn about it at www.ultracad.com


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