In summary, Vishay Barry RF power resistors are offered in surface-mount, leaded, or flange-mount configurations. The resistors are manufactured using thick-film technology on either beryllium-oxide, aluminum-nitirde, or alumina substrates. The substrate choice has a significant effect on the resistor’s power rating, with BeO offering the best thermal conductivity and power handling capability with 5x more power handling capability than alumina resistors, and AlN resistors being the next best option with up to 3x the power rating of alumina resistors. Flange-mount resistors significantly increase power handling up to 5,000 W for custom configurations. Vishay Barry RF power resistors are ideal as terminations, isolation resistors in Wilkinson power dividers, or resistor networks in RF and pulse power applications.