The Amphenol 31-70013 is a 75Ω BNC plug connector for coaxial cable termination. As a Type 1 connector, it provides constant 75Ω performance with low VSWR from DC to 4 GHz. It features a crimp-style attachment for both the outer braid and inner conductor and is specifically designed for use with RG-179 and RG-187 cable types. Its true 75-ohm impedance matching ensures low signal distortion, making it ideal for high-performance applications like broadcast, telecommunications, and high-definition video.