The TE Connectivity 1-5745968-4 is a 25-position D-sub plug from the AMPLIMITE HD-20 series, built for vertical solder termination through a PCB. It carries male pins in a standard DB-25 shell layout (size 3), with two rows of contacts arranged at the industry-standard 0.108-inch (2.74 mm) row-to-row spacing. Gold flash on the brass contacts keeps contact resistance low for moderate-cycle signal duty.
The 125 V voltage rating matches standard industrial and telecom bus levels. The grounding indents add a practical EMC margin in noisy environments by shunting shield current before it couples into the signal path.
This plug terminates by soldering the male pins directly into a PCB — no crimp or IDC tooling required. The through-hole mounting gives a robust mechanical anchor, and the 4-40 female screwlocks on the mating side accept standard D-sub jack-screws from the receptacle side. Mates with any receptacle that has male 4-40 threaded inserts on the flange. The grounding indents in the shell contact the receptacle face to create a continuous shield path.