What this connector is — Molex FCT 173109 D-Sub receptacle
The Molex 1731090974 is a 9-position D-Sub receptacle from the F, FCT 173109 series, using the standard DE (E) shell size that matches the common DB-9 panel cutout. It carries 2 rows of gold-plated machined signal contacts rated 7.5A each, with a steel shell finished in tin plating and a white PBT housing rated UL94 V-0. The flange includes integral 4-40 threaded inserts for screw-lock mating with a standard D-Sub plug.
Mating half and termination — what bolts in
The through-hole solder termination suits PCB mounting with 0.318-inch (8.08 mm) row spacing typical of D-Sub footprints. The IP20 rating means it is intended for indoor, dry environments — not sealed against washdown or direct spray.
Key ratings — what the numbers mean for the fit
The 7.5A per-contact rating is higher than the 5A typical for standard-density D-Sub connectors, which means this receptacle can handle moderate power alongside signal lines in the same shell.