Ampleon offers the industry's broadest portfolio of extremely rugged transistors designed for operation at 50, 65 and 75 V based upon its Advanced Rugged Transistor (ART) technology. Central to these devices is their unmatched ruggedness, exemplified by an impressive 65:1 Voltage Standing Wave Ratio (VSWR) capability. This feature is pivotal in withstanding the rigorous dynamic loads present in diverse applications, including plasma generators, CO2 laser drivers, particle accelerators, UHF radars, Magnetic Resonance Imaging (MRI) systems, and FM / VHF transmitters. With an almost infinite operational lifespan and negligible degradation of electrical parameters over time, ART transistors guarantee unparalleled reliability in even the most challenging environments. Moreover, these transistors offer integrated temperature sensors, operate at high voltages to reduce DC current demand, and achieve exceptional drain efficiency levels ranging from 80 % to over 90 %, depending on the class of operation.