The 86503-146HLF: Gold-plated phosphor bronze contacts carry 5 A per circuit at up to 110 V, with a 30.0 µin (0.76 µm) mating-surface thickness and a push-pull fastening type that holds the mated pair without screw hardware. The black nylon housing meets UL94 V-0 flammability, the 0.100 inch insulation height sets the stack separation, and square pins on 0.100 inch row spacing accept the matching BERGSTIK II receptacle footprint.
What the ratings mean for fit
The 46-position count is the primary BOM gate — a 2-row layout at 0.100 inch pitch, so the host board needs routing channels and the paired receptacle must carry all 46 circuits. Confirm the position count matches before committing. 5 A per contact is the per-circuit rating; the phosphor bronze base and gold plating handle the current density, but verify thermal derating if the header sits near other heat sources in the stack. The 110 V rating covers signal and moderate power duty. Push-pull fastening works well in fixed-stack applications where the board pair is mated during assembly and not routinely disconnected. If field service access is required, confirm the pull-out force is acceptable for the panel or enclosure access pattern. The unshrouded header with square pins is keyed only by the housing geometry and pin spacing — mis-mate risk is managed by the receptacle slot; confirm the mating half carries compatible keying before specifying.