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Keywords: Current vs Width vs Temp (1oz ext).PNG A graph showing the maximum current that can flow in an external copper PCB track given track width and allowable temperature increase This graph shows current ratings for 1oz/ft² 35um 0 0014in PCB Own work done in Excel using equation found http //www desmith com/NMdS/Electronics/TraceWidth html here 10/09/06 inductiveload PD Printed circuit board layout |