The 901-165 is an SMA jack to BNC plug adapter designed to interface between SMA and BNC connectors according to MIL-STD-348 standards. It features a 50 ohm impedance with a dielectric withstanding voltage of 1000 VRMS minimum, ensuring reliable signal transmission and electrical isolation. The adapter is constructed with a BNC body plug in brass with nickel plating, an SMA body jack in beryllium copper with gold plating, and brass contacts with gold plating, all insulated with PTFE material. It offers mechanical durability rated for 500 cycles minimum and operates reliably across a wide temperature range of -65°C to +165°C. This adapter is ideal for RF and microwave applications requiring impedance matching and connector compatibility between SMA and BNC systems in demanding environmental conditions.