Designed to operate in frequency range of 2–60 MHz, Model VRF2944 offers 400 W of output power at 50 V supply voltage, while Model VRT3933 delivers 300 W of output power at up to 100 V supply. Four VRF3933 devices with 2 in parallel, and those 2 parallel pairs in push-pull, are capable of launching 1.1 kW with 83 V supply voltage through 4:1 transformer to 50 Ω load. For reliability, nitride passivated chips have gold metallization and gold wire bonds.
This story is related to the following:RF Transistors | MOSFET Transistors | Integrated Circuits (IC)