View bc547 datasheet:

Discrete POWER & Signal Technologies BC547 BC547A BC547B BC547C E TO-92 B C NPN General Purpose Amplifier This device is designed for use as general purpose amplifiers and switches requiring collector currents to 300 mA. Sourced from Process 10. See PN100A for characteristics. Absolute Maximum Ratings* TA = 25°C unless otherwise noted Symbol Parameter Value Units VCEO Collector-Emitter Voltage 45 V VCES Collector-Base Voltage 50 V VEBO Emitter-Base Voltage 6.0 V IC Collector Current - Continuous 500 mA Operating and Storage Junction Temperature Range -55 to +150 TJ, Tstg °C *These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. NOTES: 1) These ratings are based on a maximum junction temperature of 150 degrees C.