View tip41 datasheet:

TIP41A/41B/41C TIP42A/42B/42C COMPLEMENTARY SILICON POWER TRANSISTORS n SGS-THOMSON PREFERRED SALESTYPES DESCRIPTION The TIP41A, TIP41B and TIP41C are silicon epitaxial-base NPN power transistors in Jedec TO-220 plastic package, intented for use in medium power linear and switching applications. The complementary PNP types are TIP42A, TIP42B and TIP42C. 3 2 1 TO-220 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit NPN TIP41A TIP41B TIP41C PNP TIP42A TIP42B TIP42C V Collector-Base Voltage (I = 0) 60 80 100 V CBO E VCEO Collector-Emitter Voltage (IB = 0) 60 80 100 V V Emitter-Base Voltage (I = 0) 5 V EBO C IC Collector Current 6 A ICM Collector Peak Current 10 A I Base Current 3 A B P Total Dissipation at T ? 25 oC 65 W tot case