5745073-2 is an HD-20 all-plastic straight posted D-subminiature plug connector designed for PCB mounting applications. This connector features 25 contact positions (shell size 3) with fixed female screwlocks for secure mating. Key dimensions include 2.095 inches (53.21 mm) for dimension A, 1.852 inches (47.04 mm) for dimension B, and 0.420 inches (10.67 mm) for dimension C. The contacts are phosphor bronze with plating code A, featuring 0.000030 inch (0.00076 mm) gold on the mating end and tin on the termination end, with 0.000050 inch (0.00127 mm) minimum nickel underplating. The connector is suitable for PCB thicknesses of 0.062-0.093 inches (1.58-2.36 mm) with the 0.125 inch (3.18 mm) post length option. This RoHS compliant connector is commonly used in industrial, telecommunications, and computing applications requiring reliable signal connections.