The TriQuint TGF4250-EEU is a single gate 4.8 mm discrete GaAs Heterostructure Field Ef fect Transistor (HFET) designed for high ef ficiency power applications up to 10. 5- GHz in Class A and Class AB operation. Typical performance at 2- GHz is 34 - dBm power output, 13 - dB gain, and 63% PAE. Bond pad and backside metalization is gold plated for compat ibility with eutectic alloy attach methods as well as thermocompr ession and thermosonic wire-bonding processes. The TGF4250-EEU is readily assembled using automatic equipment.