[SI-LIST] Why Thumb rule 40 mils takes 1A
- From: "Vijay Anand" <vijayanand.ganesan@xxxxxxxxxxxxxxxx>
- To: <si-list@xxxxxxxxxxxxx>
- Date: Tue, 7 Dec 2010 17:48:15 +0530
Dear All,
I have a Giga POE signals which is routed on 4 width, 5.5 space and 1.8 mil
thickness. I have loaded up to 1A in that lines. Initially I thought the
track will damage (since the thumb rules says 40 mils takes 1A) but it
didn't happen the way I thought. My doubt is what is the actual current
carrying capacity for 40 mil and 4 mil? Is there is any rule on the track
width for the PHY signals which has POE.
Please share your experience.
Thanks and Regards,
Vijay
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