5747145-2 is an HD-20 AMPLIMITE subminiature D receptacle connector designed for PCB mounting applications. This connector features 50 contact positions (Shell Size 5) with straight posted ACTION PIN socket contacts and fixed female screwlocks for secure mating hardware. The connector has dimensions of 2.635 inches (66.93 mm) for dimension A and 2.406 inches (61.11 mm) for dimension B, with a C dimension of 0.620 inches (15.75 mm). The contact finish uses plating code A with phosphor bronze contacts 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 housing material is flame retardant thermoplastic rated UL 94V-0, making it suitable for applications requiring reliable electrical connections on 0.093 inch (2.36 mm) minimum thick PC boards.