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Reply To: | TechNet E-Mail Forum. |
Date: | Tue, 30 Jan 2001 16:39:05 -0500 |
Content-Type: | text/plain |
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Mike,
22 awg solid wire has a diameter of approximately 0.025". It
therefore has a cross sectional area of 491 circular mils. To convert
circular to square mils, multiply by 0.7854. This gives 385 equivalent
square mils.
Using IPC-2221 Fig. 6.4, 385 sq. mils in 2 Oz copper is equivalent
to a 0.150" trace. That said, you should be able to draw about 9 amps with a
10 degree C rise in temperature.
I believe this conversion is correct, but it wouldn't hurt to double
check me.
Michael Hiteshew
Lockheed Martin NE&SS Marine Systems
[log in to unmask]
> ----------
> From: Michael Lester[SMTP:[log in to unmask]]
> Reply To: TechNet E-Mail Forum.;[log in to unmask]
> Sent: Tuesday, January 30, 2001 2:30 PM
> To: [log in to unmask]
> Subject: [TN] 22Gauge Equivalent
>
> Does anyone have a simple formula, or even a suggestion, on a way to
> figure
> the width of a line on two ounce foil that will equal the current
> carrying
> ability of a 22 gauge copper wire?
>
>
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