The 1-215460-0: Tin-on-tin contact finish keeps the cost down for signal-duty applications where frequent reconnects aren't the norm. The UL94 V-0 rated PBT housing and push-pull fastening give a reliable, non-latching mate.
Mounting and orientation for the board layout
Through-hole, right-angle termination with kinked pins — the 0.122-inch (3.10 mm) post length is standard for a 1.6 mm PCB. The 0.228-inch (5.80 mm) insulation height keeps the connector body low above the board. Two rows spaced at 0.100-inch (2.54 mm) match standard header footprints. The forked contact design provides a compliant beam for reliable connection with the mating pin.