Patent ID: 6767252
Filing Date: 2004-07-27
Classification: H01R,H05K

Abstract:
An edge card connector for connecting differential circuits on an edge card to corresponding differential signal circuits on a circuit board, the edge card housing having two opposing surfaces and an insertion edge and a plurality of conductive traces disposed on at least one of the two opposing surfaces, the connector comprising:an insulative housing having a body portion extending between two opposed ends of the housing, said housing including a card-receiving slot extending longitudinally through the housing body portion, the card-receiving slot being sized to receive at least the edge card insertion edge; and, a plurality of conductive terminals supported by said housing body portion, the terminals having contact portions for contacting the edge card conductive traces when said edge card is inserted into said card-receiving slot, the terminals being arranged in said housing in distinct triplets of terminals, each of the terminal triplets including a pair of differential signal terminals and an associated ground terminal, said terminals of said terminal triplets being spaced apart from each other at a given pitch and said terminal triplets being spaced apart from each other a distance greater than the pitch between individual terminals of said terminal triplets, so as to reduce capacitive coupling between differential signal terminals of adjacent terminal triplets and said terminal triplets are spaced apart from each other a distance that is a multiple of said pitch.