The 95278-809-12LF: The surface-mount solder termination suits reflow assembly, eliminating the wave-solder step needed for through-hole headers. The 0.669" (17.00mm) mating pin length provides clearance for stacking with standard receptacles. Gold GXT™ plating at 15.0 µinch (0.38µm) on the mating face, with a tin post finish at 78.7 µinch (2.00µm).
RoHS compliant per. The part ships in bag packaging.
Comparing Contact Plating Across Siblings
The 46-position sibling (95278-101-46LF) uses 30.0 µinch gold — double the thickness, which buys roughly double the mating cycle life in a high-reconnect application. For a fixed board-stack design that mates once and stays, the 15.0 µinch is sufficient; for a modular system that sees repeated disconnects, the thicker plating is the better call. The 8-position variant (95278-801A08LF) shares identical plating, pitch, and material spec — only the circuit count and packaging differ (Tape & Reel vs Bag). If your BOM calls for 8 positions and you need pick-and-place ready reels, that sibling is the direct swap.
Board Fit and Termination Checklist
No keying or polarization; orientation is set by the PCB layout. Surface-mount pads require a solder-paste stencil aperture sized to the 0.025" square pin footprint.