The FCI 75160-101-02LF is a 2-position, single-row BergStik unshrouded header on a 0.100" (2.54mm) pitch — the classic square-pin footprint that matches the legacy BergStik receptacle line. The through-hole solder tails and push-pull fastening keep the assembly simple: no locking latches, no shrouding, just a straight vertical header for low-profile interconnect.
The 0.100" (2.54mm) pitch is the standard 0.1-inch grid — your PCB footprint is a straight row of 2 plated through holes on that spacing, no special keep-out needed. If you're cycling this connector frequently or running low-level signals, that plating grade is what keeps the contact resistance stable.
This 2-position version (75160-101-02LF) sits between the 1-position 75160-101-01LF and the 3-position 75160-101-03LF — same pitch, same 5A rating, same gold plating, same overall length of 0.425" (10.80mm). The choice is purely positional: match the circuit count to your BOM. The 75160-102-02LF is the same 2-position count but with a longer post (0.465" overall) if you need more standoff height through the board.
The 2-position unshrouded header is a straightforward BOM line; the pitch and circuit count are the only fit variables.