The present utility model provides an electric connector that includes an insulative housing, a plurality of conductive terminals and a base. The electric connector can be electrically connected to a cable, or plugged into another complementary electric connector. The insulative housing has an insertion side, a connecting side and a plurality of terminal receiving tunnels connected to the insertion side and the connecting side. Each of the conductive terminals is received in a corresponding terminal receiving tunnel and has a connecting section extending outside the connecting side. The base has a plurality of grooves for receiving respective connecting sections of the conductive terminals and a stop block to substantially seal the terminal receiving tunnels so that the conductive terminals can be positioned easily when soldered to a cable wire. An overmolding process is applied to manufacture a protective sleeve to envelop the insulative housing assembled with a plurality of conductive terminals and a base. This prevents positional deviation of the terminals and seepage of the injected molding material into the terminal tunnels.