Well-suited for use as a driver transistor in GSM Class IV phones and AMPS ETACS or 900 MHz NMT cellular handsets, low-cost AT-38043 NPN silicon bipolar transistor comes in a compact 4.2 square mm SOT-343/SC-70 4-pin SMT package that can complement most compact RF designs. The device can be used as a pre-driver, driver, or final output in ISM 900/1800 MHz, special mobile radio, US PCS, or other wireless communications applications.