747840-4

The 747840-4 is a D-Sub connector plug from TE Connectivity, part of the AMPLIMITE HD-20 series. It features 9 positions arranged in 2 rows, with male pins and a signal contact type. The connector is designed for through-hole, right-angle mounting, making it suitable for space-constrained PCB layouts. Termination is via solder, and the shell includes a housing/shell flange feature with 4-40 threaded inserts for secure mating. Additional features include a board lock, ground strap, and grounding indents to ensure reliable electrical and mechanical connections. The shell is made of steel with a tin-plated finish, and the contacts are gold-plated for corrosion resistance and low contact resistance. The insulator material has a UL94 V-0 flammability rating, indicating good flame retardance. The connector is rated for a current of 6 A per contact, suitable for signal-level applications. With a backset spacing of 0.318 inches (8.08 mm), it is compatible with standard D-Sub cutouts. This connector is commonly used in data communication, industrial control, and computer peripheral interfaces.