2n4920g9285.pdf datasheet:

2N4918 - 2N4920* SeriesPreferred Device Medium-Power Plastic PNPSilicon TransistorsThese medium-power, high-performance plastic devices aredesigned for driver circuits, switching, and amplifier applications.http://onsemi.comFeatures Pb-Free Package is Available**3.0 A, 40-80 V, 30 W Low Saturation Voltage - VCE(sat) = 0.6 Vdc (Max) @ IC = 1.0 A Excellent Power Dissipation Due to Thermopad Construction,GENERAL PURPOSEPD = 30 W @ TC = 25_CPOWER TRANSISTORS Excellent Safe Operating Area Gain Specified to IC = 1.0 A Complement to NPN 2N4921, 2N4922, 2N4923MAXIMUM RATINGSTO-225Rating Symbol Value UnitCASE 077Collector - Emitter Voltage VCEO Vdc STYLE 12N4918 40322N4919 60 12N4920 80MARKING DIAGRAMCollector - Base Voltage VCBO Vdc2N4918 40YWW2N4919 602N2N4920 8049xxEmitter - Base Voltage VEBO 5.0 Vdc