US Patent 7914327 Electrical connector

An electrical connector sub-assembly including a housing having at least one electrical contact receiving area configured to receive an electrical contact; and a terminal position assurance (TPA) member located on a front section of the housing. The TPA member is laterally movable on the front section between an unlocked position and a locked position. The TPA member comprises two spaced sections configured to lock the electrical contact in the electrical contact receiving area at two spaced locations when the TPA member is moved to the locked position. This prevents unintentional withdrawal of the electrical contact from the electrical contact receiving area.