Board Footprint and Routing Fit
The 0022288121: Unshrouded breakaway design means the header can be snapped to length for non-standard position counts, though this part ships with all 12 positions loaded.
Contact Plating and Mating Duty
The square male pin, 0.324" (8.23 mm) mating length, provides a solid wipe surface for the receptacle contact.
Part of the Molex KK254 and 42377 series; the base product number is 002228. No pin-compatible cross-reference or successor is listed from the manufacturer.