The 5745187-1 is an AMPLIMITE HD-20 subminiature D-type receptacle connector manufactured by TE Connectivity, featuring 25 contact positions in a straight posted configuration. This connector is designed for PCB mounting with standard .120 inch [3.05 mm] mounting holes and is preloaded with size 20 DF posted socket contacts. The shell dimensions are 2.088 inches [53.04 mm] length (A) by 1.852 inches [47.04 mm] width (B), with a profile depth of .494 inches [12.55 mm] (C) and a post length of .125 inches [3.18 mm] (D), optimized for PCB board thickness of .062–.093 inches [1.58–2.36 mm]. The connector features contact plating code A with phosphor bronze contacts plated with .000030 inches [0.00076 mm] gold on the mating end and tin on the termination end, with a minimum .000050 inches [0.00127 mm] nickel underplate. This receptacle is ideal for applications requiring reliable high-density interconnections in compact spaces, such as instrumentation, data acquisition, and industrial control systems.