IGN2729M400R3 and IGN2729M400R3S are high power GaN-on-SiC RF power transistors that have been designed to suit the unique needs of modern radar systems. They supply 400W of peak output power, with typically >17.5 dB of gain and 63% efficiency. They operate from a 50 V supply voltage. For optimal thermal efficiency, the transistors are housed in a metal-based package with an epoxy sealed ceramic lid.