PCB

Via

Plated through holes are known as "vias".   When a via is used for high currents, put many vias in parallel.   Never place a via under a pad.  

Maintain a distance of at least 40 mils (1.016 mm) between any copper feature and the outer edge to prevent possible edge shorring when the PCB is cut out.  

Cross section of a Via

Lee Ritchey article

 

 

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