The Amphenol 86503-440HLF is a 40-position, dual-row unshrouded header from the BERGSTIK® II series, built on the standard 0.100" (2.54mm) pitch. The UL94 V-0 black insulator and 0.100" (2.54mm) insulation height keep the profile compact for tight board stacks.
As an unshrouded header, the 86503-440HLF mates with any standard 0.100" pitch receptacle housing or IDC socket that accepts 0.025" square pins. The push-pull fastening type means there is no latch — the retention comes entirely from the contact interference fit. The 0.250" (6.35mm) mating pin length gives enough engagement depth for most standard receptacles; the 0.120" (3.05mm) solder post length suits a standard 1.6mm PCB. The 0.100" (2.54mm) row spacing mirrors the pitch, so the footprint is a simple 40-hole grid.