I'm laying out a board that will have a MegaAvr1281 and an Atmel ICE connector. I'm stumped trying to get the proper hole size and pad diameter for this .05 pitch connector. The Samtec connector I've choosen (ESHF series) has a square .016" pin. Using the information from this page http://www.pcb-3d.com/knowledge-... I came up with the following:
Pin diameter = .0226 (hypotenuse of the square)
Level C hole size = .028527
Level C pad dia = .048
So the absolute minimum pad diameter is almost the distance between pins! What did I do wrong here?