9W4 Combo Layout — Signal and Coax or Power in One Shell
The Molex 1731070101 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 contacts in a 9W4 shell layout. This is the defining feature of this part: instead of a standard 9-position D-Sub with all signal contacts, the combo layout reserves four positions for coax or power contacts, letting you route mixed-signal and higher-current or RF lines through a single connector shell.
5A per Contact — Signal-Duty Current, Not Bus-Level Power
Each signal contact is rated 5A. That is standard for D-Sub signal pins — enough for logic-level power, sensor inputs, or low-current control lines. The coax or power positions in the 9W4 layout are not pre-populated; you select the appropriate coax or power contact (not included) to match the current or frequency your application needs. The 5A rating on the signal contacts means this is not a main-bus power connector — treat the signal positions as signal or low-power duty, and size the coax/power positions separately.
Right-Angle Through-Hole — Board-Edge Fit
The 4-40 threaded insert on the board side accepts standard D-Sub jack-screws for mechanical retention against the mating plug.