2SB601 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -100 V
• Collector-Base Voltage, max: -100 V
• Emitter-Base Voltage, max: -7 V
• Collector Current − Continuous, max: -5 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 2000 to 15000
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The 2SB601 transistor can have a current gain of 2000 to 15000. The gain of the 2SB601-K will be in the range from 5000 to 15000, for the 2SB601-L it will be in the range from 3000 to 7000, for the 2SB601-M it will be in the range from 2000 to 5000.Sometimes the "2S" prefix is not marked on the package - the 2SB601 might only be marked "B601".The complementary NPN transistor to the 2SB601 is the 2SD560.You can replace the 2SB601 with the 2N6042, 2N6042G, 2SB1020, 2SB1020A, 2SB1227, 2SB1228, 2SB673, 2SB885, 2SB886, BD244C, BD540C, BD544C, BD546C, BD650, BD652, BD802, BD902, BD954, BD956, BDT62B, BDT62C, BDT64B, BDT64C, BDT86, BDT86F, BDT88, BDT88F, BDW24C, BDW47, BDW47G, BDW48, BDW64C, BDW64D, BDW74C, BDW74D, BDX34C, BDX34CG, BDX34D, BDX54C, BDX54CG, BDX54D, BDX54E, BDX54F, MJE15029, MJE15029G, MJE15031, MJE15031G, MJF127, MJF127G, MJF15031, MJF15031G, TIP107, TIP107G, TIP127, TIP127G, TIP137, TIP137G, TIP147T or TTB1020B.