44-Position High-Density D-Sub for Board-Edge Signal Interconnects
The TE Connectivity AMPLIMITE HD-22 2311777-1 is a 44-position, 3-row D-Sub plug with male pins in a high-density layout — the HD-22 series packs more circuits into the standard DB shell size than a conventional 25-position D-Sub. Gold-plated brass contacts handle 3A per contact at 250VAC, with the gold finish supporting repeated mating cycles in field-service and test equipment applications.
Board Lock and Grounding Indents for Vibration Resistance
Two features on this connector address mechanical and electrical reliability in one package. For a right-angle D-Sub at the board edge, this matters: the lever arm from the cable exit can torque the connector, and the board locks keep the solder joints from fatiguing.
The flange features 4-40 threaded inserts for jack-screw retention, which is the standard method for securing the mated pair in high-vibration environments. Termination is solder to the through-hole tails; the 0.350" (8.89mm) backset spacing positions the connector body relative to the PCB edge for clearance behind the panel.
The base product number is 2311777, and the series is AMPLIMITE HD-22 from TE Connectivity.