747145-2 is an AMPLIMITE HD-20 front metal-shell subminiature D-type receptacle connector featuring 50 ACTION PIN socket contacts with straight posts for PCB mounting. This shell size 5 connector includes fixed female screwlocks and is designed for minimum 0.093 inch (2.36 mm) thick PC boards. Key dimensions include 2.835 inches (66.93 mm) for dimension A, 2.406 inches (61.11 mm) for dimension B, and 0.620 inches (15.75 mm) for dimension C. The connector features a tin-plated steel front shell, 94V-0 rated black thermoplastic housing, and copper alloy contacts with gold plating on the mating end and tin-lead on the ACTION PIN post surface with nickel underplating. This connector is ideal for high-density interconnect applications requiring reliable signal transmission and secure mechanical attachment.