The TE Connectivity 5747834-4 is a 25-position D-Sub plug (male pins) from the AMPLIMITE HD-20 series, terminated through-hole right-angle for PCB mounting. Board locks on the mounting ears anchor it during wave solder and take shear off the pins when the mating cable is strain-relieved to the panel.
Grounding and Retention — What the Features Actually Do
The grounding indents on the shell mate with the receptacle's shield before the signal pins engage, bleeding ESD and shield current to the board ground plane — that's the difference between a clean link and intermittent resets in a noisy environment. The ground strap provides a dedicated low-impedance path between the shell and the PCB ground, which matters when the cable shield is bonded at both ends. The board locks (two barbed posts) hold the connector in place during reflow or wave solder and resist the push-pull from the cable bundle after assembly. The flange has threaded 4-40 inserts for the standard D-sub jackscrew lock — no special hardware needed to secure the mating half.