2.50 mm pitch, 8 positions, 5 A — the BOM-fit anchor
The 1318125-1 is an 8-position, 2-row header from TE's Dynamic D-2100 series, pitched at 2.50 mm. That pitch and the 8 circuits define the PCB footprint and the mating half — a Dynamic D-2100 receptacle with the same circuit count.
Shrouded, locked, and locked down
The shrouded - 4 wall design prevents bent pins and mis-mating during blind assembly — a common failure in unshrouded headers. Board locks on the through-hole tails hold the header flat against the PCB during wave solder, eliminating the need for secondary hold-down fixtures.