Patent ID: 7753737

Claim:
An electrical connector assembly, comprising: a first connector, comprising: a first insulative housing defining a front mating face, an opposite back face, a top face, an opposite bottom face, an elongated slot on said front mating face, a plurality of first passageways extending through the housing from the front mating face to the back face and in communication with the slot, and a guide groove penetrating through the housing from the top face to the opposite bottom face, said guide groove located adjacent said back face and at a location between opposite sides of said first housing; a plurality of first terminals received in respective first passageways, each first terminal having a vertical flat back engaging portion extending beyond a corresponding passageway and exposed on said back face; a second connector for mating with the first connector, comprising: a second insulative housing defining a top face, a bottom face opposite to the top face, a forward face, a cutout on said forward face, a plurality of second passageways extending from the top face toward the bottom face and in communication with the cutout, and a guide post in correspondence with said guide groove; a plurality of second terminals received in respective second passageways, each second terminal having a forward engagement section exposed to said cutout on the forward face of the second housing; wherein the first connector mates with the second connector in a condition that the guide post penetrates through the guide groove and said vertical flat back engaging portion of the first terminal slidably engages with said forward engagement section of the second terminal; wherein the first insulative housing includes a first cavity and a second cavity divided by a partition and the guide groove is aligned with the partition; wherein the second insulative housing further has a base section defining a reference face, a rib extending from the reference face, the guiding post extending from the rib, and a slot is disposed between the rib and the forward face; and wherein the first insulative housing further comprises a projection protruding from the opposite bottom face and adapted to mate with the slot of the second insulative housing.