Short eject hooks lock the mate
The 5499345-1: Fastening is via latch lock/eject hooks, short type — these engage the matching slots on the AMP-Latch receptacle and pull the connector pair together during mating. The hooks also provide a positive retention that resists vibration-induced separation, and the short lever arm is sized for the 10-position body without overhanging the board edge. A keying slot and mounting flange on the header prevent mis-mating and add mechanical stability to the through-hole solder joints. The 0.110-inch (2.79 mm) post length suits standard PCBs with enough tail protrusion for wave-solder fillet formation.