The 9-146252-0-06: The 0.125" (3.18mm) post length gives enough solder tail for a standard 1.6mm PCB — the tip protrudes about 1.6mm past the board bottom, enough for a clean fillet without bottoming out in a through-hole.
Sourcing and Lifecycle — Still in Production
Mating and Termination — What Connects and How
Through-hole solder termination — the 0.125" post length suits wave or hand soldering; no press-fit or SMT option on this variant. The 0.090" (2.29mm) insulation height leaves clearance for the receptacle housing to sit flush against the header body — no z-height surprise in a tight enclosure.