The 121073-2156-D is a Standard D-Subminiature connector manufactured by ITT Cannon, designed for reliable signal and power transmission in industrial and electronic applications. It features a steel shell with tin finish, thermoplastic insulator (PCT UL 94V-0), and supports wire gauges from AWG 20-28 with a current rating of 7.5 A at 85°C or 5 A at 105°C. The connector offers a dielectric withstanding voltage of 1200 VAC at sea level, contact resistance of 10 milli Ohm maximum, and is rated for 200 mating cycles with an operating temperature range of -55°C to +125°C. This connector is ideal for applications requiring robust, cost-effective interconnection solutions in harsh environments, with proven durability demonstrated by 20-hour salt spray testing.