The TE Connectivity 5747842-5 is a 25-position D-Sub plug from the AMPLIMITE HD-20 series, configured as a right-angle through-hole solder mount. It carries 25 male pins in a standard DB-25 shell layout (shell size 3, DB, B), which means it mates with any standard 25-position D-Sub receptacle — the same footprint used on serial ports, parallel interfaces, and industrial I/O panels for decades. Rated 6A per contact at 125V, this is a signal-density D-Sub — the 6A figure is the per-pin limit under the temperature rise ceiling of the UL94 V-0 thermoplastic housing. The steel shell with tin plating provides the mechanical robustness and shield continuity expected from a D-Sub in a cable-to-panel or cable-to-board interface.
Board Lock, Ground Strap, and Mounting Details
A ground strap and grounding indents are also listed as features. The ground strap connects the shell to a PCB ground trace through one of the mounting holes, while the indents ensure a low-impedance shell-to-shell contact when mated. Together they improve the shield transfer impedance relative to a basic D-Sub without these extras — worth noting if the assembly is near a noise source or needs to pass radiated emissions. The flange uses a mating-side female screwlock with 4-40 thread, the standard UNC size for DB-25 connectors. The backset spacing is 0.318" (8.08mm), which is the distance from the PCB mounting surface to the front of the flange — this dimension determines how far the connector protrudes past the board edge and whether it clears the panel cutout.
The contacts are brass with gold flash plating. Gold flash provides corrosion protection for the mating interface. Termination is solder — the pins are through-hole for wave or hand soldering. No crimp or IDC option on this variant.
There is no official TE replacement or cross-reference listed; the 5747842-5 is the current production order code for this configuration.