Patent ID: 7485009

Claim:
An electrical connector comprising: a dielectric housing comprises a pair of arms at the oppose ends, a pair of inner slots in the inner lateral sides of said arms, a pair of outer slots in said outer side and located at rear sides of said arms and an elongate mating board is engaged in said inner slots; and a printed circuit board is sandwiched in said outer slots, said mating board defining a planar mating plane parallel to a mounting surface of said pair of said outer slots; and a set of first conductive contacts aligned in a line and embedded securely in said dielectric housing, each first conductive contact comprising a planar contacting section having a contacting surface to electrically engage a complementary electrical connector, a mounting section to electrically engage said printed circuit board, an intermediate section connecting between the contacting section and the mounting section, the contacting surfaces of said plurality of first conductive contacts are located in both end sides of the housing and arranged a common plane having an offset from said printed circuit board; and a set of second contacts respectively secured in said dielectric housing and aligned in a line parallel to the line which said first conductive contacts aligned in, each second conductive contact having a thinner width than said first conductive contact; wherein the intermediate section of each of said first conductive contacts defining a hole therein, to reduce an area of the intermediate section to gain a proper effective conductive region, said proper size conductive region of the intermediate section can be set by defining a proper size of said hole; the mating board defines a block standing on a top side of said planar mating plane in series with said planar contacting sections of said first conductive contacts, said plurality of second planar contact sections of said second conductive contacts are embedded directly underneath the block, on a bottom side of said planar mating plane, opposite to said top side; wherein at least one recess located on said top side of said planar mating plane to lock one protrusion of a complementary electrical connector during mating position.