>How can I Calculate the maximum current for a specific track ? >Or how to calculate track width based on desired max current... There are tables for doing this, and it has been covered on the list in the past. The problem is usually not the size of the track, but what voltage drop or temperature rise you are prepared to handle. I have been through this loop several times, and every time when someone finds that a track will handle several times the peak current they expect, they find that there will be what they regard as a significant voltage drop, and the track is usually made as short and robust as possible to a pad, and suitable wire run from there to the destination. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! use mailto:listserv@mitvma.mit.edu?body=SET%20PICList%20DIGEST