L17DEFRA09S is a 9-contact D-Sub flat ribbon cable socket connector designed for compact peripheral equipment applications. It features a steel shell with nickel plating, glass-filled thermoplastic insulator (UL 94V-0), and brass contacts with selected gold plating in the mating area. The connector is rated for 5A current and 250V AC/rms at 60Hz, with an operating temperature range of -40°C to +125°C. Key dimensions include 30.84mm (A), 24.99mm (B), and 16.92mm (C), with a rear insert 4-40 mounting option. This connector is suitable for industrial, telecom, and standard I/O connections where simplified cable assemblies using 1.27mm flat ribbon cable are required.