An electrical connector assembly, comprising: an electrical terminal having an attachment end extending along a longitudinal axis configured to be attached to a wire cable and a connection end extending along a lateral axis configured to be attached to a corresponding mating terminal; a first terminal housing formed of an infrared absorbent material and having a first cavity extending along the longitudinal axis in which the attachment end is disposed, the first cavity defining a cable opening through which the wire cable extends and defining a terminal extension opening through which the connection end extends; and a second terminal housing formed of an infrared transparent material and having a second cavity extending along the lateral axis in which the connection end is disposed, the second cavity defining a terminal reception opening through which the connection end is received and a mating opening configured to receive the corresponding mating terminal, wherein the first terminal housing defines a first attachment surface surrounding the terminal extension opening and the second terminal housing defines a second attachment surface surrounding the terminal reception opening, wherein the first attachment surface is welded to the second attachment surface using an infrared laser welding process, thereby forming a watertight seal, preferably forming a hermetic seal, between the first attachment surface and the second attachment surface, and wherein the first attachment surface forms a first angle relative to the longitudinal axis and the second attachment surface forms a second angle relative to the lateral axis. an electrical terminal having an attachment end extending along a longitudinal axis configured to be attached to a wire cable and a connection end extending along a lateral axis configured to be attached to a corresponding mating terminal; a first terminal housing formed of an infrared absorbent material and having a first cavity extending along the longitudinal axis in which the attachment end is disposed, the first cavity defining a cable opening through which the wire cable extends and defining a terminal extension opening through which the connection end extends; and a second terminal housing formed of an infrared transparent material and having a second cavity extending along the lateral axis in which the connection end is disposed, the second cavity defining a terminal reception opening through which the connection end is received and a mating opening configured to receive the corresponding mating terminal, wherein the first terminal housing defines a first attachment surface surrounding the terminal extension opening and the second terminal housing defines a second attachment surface surrounding the terminal reception opening, wherein the first attachment surface is welded to the second attachment surface using an infrared laser welding process, thereby forming a watertight seal, preferably forming a hermetic seal, between the first attachment surface and the second attachment surface, and wherein the first attachment surface forms a first angle relative to the longitudinal axis and the second attachment surface forms a second angle relative to the lateral axis.