Plane grid array electrical connector

The utility model relates to a plane grid array electrical connector, which is used for the electrical connection of chip modules to circuit boards. The utility model comprises an insulating body and conductive terminals which are held in the insulating body, wherein the insulating body is provided with lateral walls and a conduction region which is enclosed by the lateral walls, wherein the conduction region is provided with terminal holding slots which are arranged in a rectangular array and the conductive terminals are held in corresponding terminal holding slots of the insulating body. Furthermore, the lateral walls of the insulating body are provided with elastic arms which extend to the conduction region, the elastic arms are cantilevers, gaps are appeared between the elastic arms and the lateral walls and the space of the elastic deformation of the elastic arms is provided by the gaps. Besides, the lateral walls are provided with abutting blocks, when the elastic arms are in a free state, the abutting blocks can not contact with the elastic arms and the elastic arms generate elastic deformation to contact with the abutting blocks after chip modules are assembled into the electric connector. With the structure, the breakage of the elastic arms caused by over deformation can be avoided.