The 142189-75 is an SMB crimp jack connector designed for RG-179/U cable termination. It features a brass body with gold finish, PTFE insulators, and a gold-plated contact pin and ferrule for reliable electrical connection. The connector includes a hex crimp ferrule (0.128" hex crimp size) and a square crimp contact pin (0.7 mm crimp size), with recommended cable stripping dimensions of 2.00 mm, 4.70 mm, and 9.90 mm. The assembly incorporates black heat shrink tubing for strain relief and environmental protection. This connector is commonly used in RF and microwave applications requiring secure, low-loss cable connections with excellent durability and performance.