Design-engineering note — Bel Fuse 1731140082 D-Sub combo plug
The Bel Fuse 1731140082 is a D-Sub combo plug with 2 power positions, built in the FMK / FCT 173114 series. It houses both female sockets and male pins in a single DE-size shell (layout 1 (DE, E) - 2V2, 2W2C) — a mixed-contact arrangement that lets one connector carry power and signal through separate contact cavities. The 20 A per-contact rating, backed by machined copper alloy contacts with 4.00 µin gold plating, puts this in the power interconnect class, not a signal-only D-Sub. Termination is solder cup, accepting 12-16 AWG wire, and the free-hanging (in-line) mounting with integrated backshell, cable clamp, grounding indents, and strain relief means the connector arrives as a nearly complete cable-end assembly — no separate hardware sourcing for the backshell or clamp.
There is no official successor or last-time-buy notice on record.
The 20 A per-contact rating is the headline — each power contact is machined and gold-plated, sized to carry bus-level current through the D-Sub shell. The solder cup termination handles 12-16 AWG, which is the typical wire gauge for a 20 A circuit in a harness.
Termination and harness assembly
Solder cup termination for 12-16 AWG — strip, tin, and solder into the cup. The backshell and cable clamp assemble over the wire exit, and the grounding indents in the shell provide a shield-bonding point. The free-hanging connector is not panel-mount; it terminates a cable end that mates with a panel-mounted or another in-line receptacle.