The single row, single position makes this a straightforward one-circuit connection for a signal or low-power line.
As an unshrouded header, this mates with any standard 2.54 mm pitch single-row receptacle housing that accepts a 0.025" square pin. No polarizing key is present; the header is symmetrical and can be inserted in either orientation into a matching receptacle.
Board Layout Note
The overall contact length of 0.588" (14.94 mm) and the 0.120" (3.05 mm) mating contact length define the stack height when mated with a receptacle. The 0.100" (2.54 mm) pitch is the standard 0.100-inch grid, so the single through-hole pin lands on a single 0.040" plated hole — no special footprint required.