What it is
The FCT (Bel Fuse) 1731140082 is a D-Sub combo plug carrying 2 power circuits at 20 A per contact, which is the primary selection fact for anyone spec'ing a rugged panel or harness interconnect — the contact count and current headroom define the BOM fit. Machined gold-over-nickel contacts at 4.00 µm (0.100 µm) give this connector a wear tolerance well beyond tin-plated D-Sub variants; the plating is on the mating face only, so the choice is driven by mating cycle life rather than board-level solder joint integrity. Solder cup termination accepts 12–16 AWG wire directly, making this a field-termination option for power harness runs where a pre-crimped pigtail is not already defined in the assembly.
Thermal and material stack
Operating range is -55°C to 130°C with PBT as the dielectric, which covers the envelope for industrial enclosures and under-hood harness applications. The tin-plated steel shell is electrically functional — it grounds through the mounting flange and the grounding indents — not cosmetic, so the plating choice is load-bearing for EMC in the harness assembly.
Sourcing and compliance
Listed Active with ROHS3 Compliant status — no last-time-buy flag, no documented successor in this ledger, so the sourcing posture is quoted-to-order against the BOM quantity with no alternate cross-reference.