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Fergus Kyle
Joined: 03 Jun 2007
Posts: 291
Location: Burlington ON Canada
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 Posted: Wed Mar 16, 2011 1:41 pm Post subject: Bob nuckolls - advice 2 |
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Further to my previous:
A measured pin diameter is 0.04 inches, radius is 0.02”, area is (0.02x0.02)xpi = 0.00125663 sq.in. x 645.16 = 0.8107319 sq.mm.
This comes out between AWG20 and AWG18 – call it AWG #19.
That would infer that the pin carries about 6-7 amps, having regard for irregular measuring, improper meshing of pin/socket, differing metals, temp, bundling etc.
Am I in the ball park?
ferg [quote][b]
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nuckolls.bob(at)aeroelect
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| Posted: Wed Mar 16, 2011 7:44 pm Post subject: Bob nuckolls - advice 2 |
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At 05:33 PM 3/16/2011, you wrote:
| Quote: | Further to my previous:
A measured pin diameter is 0.04 inches, radius is 0.02”, area is (0.02x0.02)xpi = 0.00125663 sq.in. x 645.16 = 0.8107319 sq.mm.
This comes out between AWG20 and AWG18 – call it AWG #19. |
The pin diameter isn't much of a driver. It's localized
heating at the pin-spring interface inside the female
pin. 3A de-rating will give you VERY comfortable
performance.
Bob . . . [quote][b]
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