The 745183-2 is a subminiature D-type receptacle connector from TE Connectivity's AMPLIMITE HD-20 series, featuring a full metal shell with 9 contact positions and straight posted socket contacts for direct PCB mounting. The connector is constructed with a steel shell (tin plated) and 94V-0 rated thermoplastic black insert, with phosphor bronze socket contacts plated with gold on the mating end and tin-lead on the termination end, backed by a minimum 0.00127 inch nickel underplate. Key dimensions include a mating face width of 0.429 ± 0.015 inches, with overall dimensions of 1.213 inches (A dimension) and 0.984 inches (B dimension), and post lengths available at 0.125 inches (for 0.062–0.093 inch PCB thickness) or 0.188 inches (for 0.093–0.125 inch PCB thickness). This connector is ideal for applications requiring reliable, compact interconnections in electronic equipment where space is limited and high-density contact arrangements are needed.