An electrical connector is disclosed having a housing having at least one row of terminal receiving passageways. Each passageway includes a locking latch. An overstress protection rib is positioned below each latch. A channel extends through a front wall of the housing and adjacent to the at least one row of terminal receiving passageways, and on the opposite side of the latch. A terminal position assurance member (TPA) has a pre-locked position with the TPA positioned forward of the latch allowing the latch to resile into the channel, and a fully locked position where the TPA is positioned underneath the latch.