The 112404 is a BNC PCB-mount receptacle jack connector designed for 50 ohm RF applications with a TF-4 post configuration. The connector features a brass body with nickel finish, a Teflon insulator, phosphor bronze contact pins with gold plating, and a brass lock ring with nickel finish, ensuring reliable electrical performance and durability. Key dimensional specifications include an overall length of 18.20 mm, body diameter of 11.70 mm, and PCB mounting holes with 6.35 mm spacing. This connector is commonly used in RF and microwave applications, test equipment, and instrumentation where secure, impedance-controlled connections are required.