9-Position D-Sub Receptacle with Solder Cup Termination
The Molex 1731090094 is a 9-position D-Sub receptacle with female sockets arranged in 2 rows, using the standard DE-9 (E) shell size. This part belongs to the F, FCT 173109 series from Molex, a standard-density D-Sub line built around machined contacts rather than stamped-and-formed. The shell is steel with tin plating, and the insulator is polybutylene terephthalate (PBT). The cable-side flange includes 4-40 threaded inserts for mating with the standard D-Sub hardware — jack-screws or slide-locks on the plug side secure the pair against vibration.
Termination is solder cup — each contact has a cup that accepts stripped wire, soldered in place. This is the traditional field-terminable method for D-Sub connectors, preferred for prototype, low-volume, or repair work where a crimp tool for the specific contact is not on hand. The machined contact body gives a consistent solder joint across the wire gauge range the cup can accept. Mates with any standard DE-9 (E shell) D-Sub plug having male pins and the same 4-40 threaded hardware spacing. The 9-position layout is the DB-9 pinout common to RS-232 serial, CAN bus, and many industrial sensor interfaces.