View tip3055 tip2955 datasheet:

TIP3055 (NPN),TIP2955 (PNP)Complementary SiliconPower TransistorsDesigned for general-purpose switching and amplifier applications.http://onsemi.comFeatures DC Current Gain - 15 AMPEREhFE = 20 - 70 @ IC POWER TRANSISTORS= 4.0 AdcCOMPLEMENTARY SILICON Collector-Emitter Saturation Voltage - 60 VOLTS, 90 WATTSVCE(sat) = 1.1 Vdc (Max) @ IC = 4.0 Adc Excellent Safe Operating Area These are Pb-Free Devices*MAXIMUM RATINGSRating Symbol Value UnitSOT-93 (TO-218)CASE 340DCollector - Emitter Voltage VCEO 60 VdcSTYLE 1Collector - Emitter Voltage VCER 70 VdcCollector - Base Voltage VCB 100 VdcEmitter - Base Voltage VEB 7.0 VdcCollector Current - Continuous IC 1 5 AdcBase Current IB 7.0 AdcTO-247CASE 340LTotal Power Dissipation @ TC = 25C PD 90 WSTYLE 3Derate above 25C0.72 W/COperating and Storage Junction TJ

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