View utc s8550 datasheet:

UTC S8550 PNP EPITAXIAL SILICON TRANSISTOR LOW VOLTAGE HIGH CURRENT SMALL SIGNAL PNP TRANSISTOR DESCRIPTION The UTC S8550 is a low voltage high current small signal PNP transistor, designed for Class B push-pull audio amplifier and general purpose applications. 1 FEATURES *Collector current up to 800mA *Collector-Emitter voltage up to 20 V TO-92 *Complementary to UTC S8050 1:EMITTER 2:BASE 3: COLLECTOR ABSOLUTE MAXIMUM RATINGS ( Ta=25°C ,unless otherwise specified ) PARAMETERS SYMBOL VALUE UNIT Collector-Base Voltage VCBO -30 V Collector-Emitter Voltage VCEO -20 V Emitter-Base Voltage VEBO -5 V Collector Dissipation(Ta=25°C) Pc 1 W Collector Current Ic -800 mA Junction Temperature Tj 150 °C Storage Temperature TSTG -65 ~ +150 °C ELECTRICAL CHARACTERISTICS(Ta=25°C,