745440-1 is an AMPLIMITE HD-20 full metal-shell right-angle posted subminiature D-type receptacle connector designed for PCB mounting applications. This shell size 3 connector features 25 contact positions with size 20 DF posted socket contacts made of phosphor bronze, and includes gold flash plating (B code) on the mating end with tin-lead on the termination end and nickel underplating throughout. The connector has overall dimensions of 2.068 inches (53.04 mm) for dimension A and 1.852 inches (47.04 mm) for dimension B, with a 0.025 inch (0.64 mm) square post size. The steel shell is tin plated and the insert is made of 94V-0 rated black thermoplastic. This connector is ideal for applications requiring reliable signal connections in industrial, computing, and communication equipment where right-angle PCB mounting is needed.