Sealed connector with self locking terminal position assurance device

Abstract

An electrical connector is disclosed, including an inner housing with at least one cavity aligned parallel to an insertion direction, an outer housing with a mating face accommodating the inner housing, at least one terminal housed in each cavity, and a terminal position assurance device (TPA) positioned between the inner and outer housings. The TPA is fully covered by the outer housing and can be rotated about a perpendicular axis to the insertion direction. It transitions between an open position allowing terminal insertion and a closed position securing the terminals in the cavities. Actuating means on the outer housing facilitate TPA movement as the inner housing is inserted from an initial to a final position, ensuring proper terminal locking within the deepest functional position of the outer housing.