The 1-1586681-2: The 0.250" (6.35mm) pitch sets a wide board footprint — each contact carries the full rated current with generous clearance between adjacent traces. The 12-position header has one position unloaded (11 loaded), so verify your circuit count against the populated pins before routing the PCB. Locking ramp fastening holds the mated pair under vibration without needing a separate latch or screw — the ramp clicks into the receptacle housing and stays until deliberately released.
The 1-1586681-2 uses a wider 6.35mm pitch and tin-plated contacts — better suited for higher-current or larger-wire applications where board density is less critical.
The locking ramp on this header engages the receptacle latch — no separate hardware needed. Through-hole solder termination: the 0.155" (3.94mm) post length fits standard 1.6mm PCBs with enough protrusion for a reliable solder fillet. The white nylon housing withstands wave-solder temperatures up to the UL94 V-0 rating. Board-to-board or cable style: this header can connect two PCBs directly or serve as the board-side half for a wire-to-board harness. The 3-row arrangement with 0.250" (6.35mm) row spacing keeps the connector body compact for a 12-position count.