The 164A16689X is a 37-position female D-Sub connector designed for reliable board-to-board or board-to-cable connections. It features straight solder pin terminations for PCB mounting, a steel metalshell with tin plating, and copper alloy contacts with gold over nickel plating. The insulator is made from black PBT GF material with a UL 94 V-0 flammability rating. This connector includes an integrated 4-40 UNC threaded lock and spacer clip for secure mounting on a 1.6mm thick PCB. It is RoHS compliant and suitable for a variety of data and communication applications.