The 222430-00SF from Southwest Microwave is an RF coaxial adapter that operates from DC to 90 GHz. This 1.35 mm plug (male) to 1 mm jack (female) adapter has a low insertion loss, leakage of less than -100 dB, and VSWR of less than 1.28:1. It is available in a passivated stainless-steel housing with gold plated BeCu contacts.