The high power pulsed avionics transistor part number IB1011S190 is designed for L-Band avionics systems operating at 1030 and 1090 MHz. While operating in class C mode under 10µs, 1%, at VCC = 60V, this common base device supplies a minimum of 190 watts of peak pulse power. It utilizes a low loss internal input impedance matching structure to yield maximum device gain and to ease the implementation of external matching circuitry. The new generation bipolar transistor geometry utilizes a gold metallization system to achieve maximum reliability. Emitter ballast resistance is incorporated on the active cell for optimum thermal distribution and maximum reliability