The header mounts through-hole with kinked pins that provide a tight interference fit in the plated hole before soldering, reducing the chance of the part shifting during wave solder. The insulation height of 0.551" (14.00 mm) gives clearance for the mating receptacle's latch and strain relief, and the post length of 0.150" (3.81 mm) suits standard 1.6 mm thick PCBs.
Its rated current is 2 A, whereas the 178487-1's current varies by wire gauge — the wider pitch on the 178487-1 supports higher current per contact.