Amphenol's BNC connectors are miniature, lightweight RF connectors developed in the late 1940s. They offer a quick connect/disconnect mechanism with a quarter-turn bayonet coupling. These connectors are ideal for cable termination in applications such as medical equipment, test instrumentation, antennas, base stations, and telecommunications. Amphenol offers both 50Ω and 75Ω BNC connectors to meet diverse impedance matching requirements. Military grade connectors are produced to MIL-C-39012 specifications, while commercial grade connectors are easily identified by the 'RFX' designation. Reverse polarity BNC connectors are also available for keying systems.