The 1-745968-4 is an AMPLIMITE subminiature D-type connector plug (Shell Size 3) featuring 25 contact positions with fixed female screwlocks and retention capability designed for 0.062 inch (1.58 mm) PCB thickness. The connector has a steel shell with tin plating, a black 94V-0 rated thermoplastic housing, and brass threaded inserts with zinc female screwlocks. The pin contacts are brass with gold plating (0.00075 inch minimum) on the mating end and tin-lead plating on the termination end, with a minimum 0.00127 inch nickel underplate throughout. Key dimensions include a mating face width of 0.230±0.006 inches (5.84±0.15 mm) and a connector length of 0.494±0.015 inches (12.55±0.38 mm), with grounding indents and a 0.026 inch diameter typical post configuration. This connector is ideal for applications requiring secure, reliable interconnection in compact spaces with retention and screwlock features for enhanced durability and vibration resistance.