An electrical connector comprises an insulative housing and a plurality of conductive terminals fixed to the insulative housing. The insulative housing includes a pair of longer walls and a pair of short walls bounding a plug-receiving cavity with an insertion direction. The conductive terminals include plate portions partly embedded in inner surfaces of the longer walls and welded portions extending out of the insulative housing. The inner surface of the longer walls define Positioning grooves between every adjacent terminals. Each of the plate portion of the conductive terminal defines a contacting surface faced to the plug-receiving cavity and two side edges intersecting with the opening edge of corresponding Positioning groove. The structure of the connector contributes to an insert molding of the connector. It is convenient not only to terminal implant and but also to a precise positioning of two directions of the terminals during the insert molding process.
