D-Sub Combo Receptacle, 9W4 Layout
The Molex 1731070062 is a D-Sub combo receptacle from the FM, FCT 173107 series, carrying 9 positions arranged as 5 signal contacts plus 4 coax or power cavities in a 9W4 shell layout. This hybrid arrangement lets a single connector body pass both low-level signals and a coaxial line or higher-current power circuit, saving panel space over separate connectors. The receptacle accepts female sockets (contacts not included), terminated via solder cup, and mounts to a panel through the unthreaded housing/shell flange.
The 5A per-contact current rating applies to the signal contacts; the coax or power cavities are rated separately by the inserted contact. For a mixed-signal harness, the 5A limit on the signal pins is adequate for control and sensor lines, while the coax/power positions handle RF or a higher-current feed.
Panel mounting uses the unthreaded housing/shell flange — the connector is secured by the mating D-Sub plug's threaded hardware or by a separate jack-screw kit. Solder cup termination means each wire is soldered into a cup at the back of the contact, a common method for prototyping, low-volume builds, or field repair where a crimp tool isn't available. The steel shell with tin plating provides EMI shielding and mechanical robustness.