The KGF1633, housed in a SOT-89 type plastic-mold package, is a discrete GaAs power FET that features high efficiency and high output power. The KGF1633 specifications are guaranteed to a fixed matching circuit for 3.4 V and 850 MHz; external impedance-matching circuits are also required. Because of its high efficiency, high output power (more than 27 dBm), and plastic package, the KGF1633 is ideal as a transmitter-drive amplifier for Personal Handy Phones (PHPs), and other 3-V digital cellular phones. This device is also suited to higher frequency applications.