2n4901-2n4902-2n4903.pdf datasheet:

PNP SILICON TRANSISTORS, PNP SILICON TRANSISTORS, EPITAXIAL BASE EPITAXIAL BASE LF Large signal power amplification Switching medium current ABSOLUTE MAXIMUM RATINGS Symbol Ratings Value Unit2N4901 -40 VCBO Collector to Base Voltage 2N4902 -60 V 2N4903 -80 2N4901 -40 VCEO #Collector-Emitter Voltage 2N4902 -60 V 2N4903 -80 2N4901 -40 VCER Collector-Emitter Voltage 2N4902 -60 V 2N4903 -80 2N4901 VEBO Emitter-Base Voltage 2N4902 -5.0 V2N4903 2N4901 -40 VCEX Collector-Base Voltage VBE=1.5 V 2N4902 -60 V 2N4903 -80 2N4901 IC Collector Current Continuous 2N4902 -5 A2N4903 2N4901 ICM Collector Current Peak tp=5 ms 2N4902 -10 A2N4903 2N4901 IB Base Current Continuous 2N4902 -1 A2N4903 2N4901 PTOT Power Dissipation 2N4902 87.5 W2N4903 2N4901 2N4902 TJ Junction Temperature 200 C2N4903 2N4901 -65 to T