The mating interface carries a 30.0 µin gold GXT™ finish, which handles repeated connect/disconnect cycles better than a tin-plated equivalent would in the same role.
Termination is listed as both Press-Fit and Solder — the press-fit option suits a solderless backplane assembly where rework matters, while the through-hole solder tail (0.177" / 4.50 mm post length) handles conventional wave or hand-solder builds. The overall contact length of 0.582" (14.78 mm) and mating pin length of 0.295" (7.49 mm) are standard for this series; the unshrouded design means the receptacle housing provides the polarization and alignment, not the header itself.
The housing is rated UL94 V-0, and the contact material is copper alloy with a tin-plated post (39.4 µin / 1.00 µm) and gold GXT™ mating finish (30.0 µin / 0.76 µm).