5207841-4 is an HD-20 all-plastic straight posted subminiature D receptacle connector designed for PCB mounting applications. This connector features 9 contact positions (shell size 1) with threaded inserts and is preloaded with size 20 DF posted socket contacts. The socket contacts are made of phosphor bronze with gold plating (.000030 in / 0.00076 mm) on the mating end and tin on the termination end, with nickel underplating (.000050 in / 0.00127 mm minimum). Key dimensions include 1.228 in (32.72 mm) for dimension A, 0.984 in (24.99 mm) for dimension B, 0.420 in (10.67 mm) for dimension C, and a post length of 0.125 in (3.18 mm) recommended for PCB thickness of 0.062-0.093 in (1.58-2.36 mm). This connector is commonly used in applications requiring reliable signal connections with secure panel or PCB mounting.