The 0.250" (6.35 mm) pitch sets the PCB footprint and determines the mating connector family — it mates with the corresponding Universal MATE-N-LOK receptacle housing and crimp terminals.
The 0.250" (6.35 mm) pitch is the critical dimension for board layout — the footprint requires a 6.35 mm center-to-center spacing between the two through-hole posts. The contact length post is 0.155" (3.94 mm), which sets the minimum PCB thickness for proper solder fillet formation. The housing insulation height of 0.580" (14.73 mm) gives clearance above the board for wire routing and mating receptacle entry. For exact derating, refer to the Universal MATE-N-LOK current-temperature curve in the product drawing.