The 9-102974-0-12: The 0.110" (2.79mm) solder tail length suits standard 1.6mm-thick PCBs — the pin protrudes enough for a reliable solder fillet without bottoming against the opposite-side component.
The tin-plated solder tails (100 µinch tin over nickel) and gold-plated mating contacts are lead-free per current industry directives.
