5745077-4 is an HD-20 all-plastic straight posted subminiature D receptacle connector designed for PCB mounting applications. This connector features 15 contact positions with shell size 2, and includes fixed female screwlocks for secure mating. The contact finish uses plating code A, which consists of phosphor bronze contacts with 0.000030 inch (0.00076 mm) gold on the mating end, tin on the termination end, and 0.000050 inch (0.00127 mm) minimum nickel underplating. Key dimensions include A: 1.546 inch (39.27 mm), B: 1.312 inch (33.33 mm), C: 0.420 inch (10.67 mm), and post length options of 0.125 inch (3.18 mm) or 0.170 inch (4.32 mm). This connector is ideal for applications requiring reliable signal connections in industrial, telecommunications, and computing equipment.