A hybrid electrical connector includes a housing having a central opening, a carrier plate supported by the housing within the central opening, and electrically conductive pins supported within the housing by the carrier plate. The housing is formed of a first plastic material, and the carrier plate is formed of a second plastic material having properties that make it more dimensionally stable than the first plastic material. In addition, a sealing layer is applied to one surface of the carrier plate, the sealing layer formed of a third plastic material and serving to secure the carrier plate to the housing and to secure the pins within the carrier plate. A method of forming the electrical connector is also described.