2SB1481 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -100 V
• Collector-Base Voltage, max: -100 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -4 A
• Collector Dissipation: 25 W
• DC Current Gain (h_fe): 1000
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F

Here is an image showing the pin diagram of this transistor.Sometimes the "2S" prefix is not marked on the package - the 2SB1481 might only be marked "B1481".You can replace the 2SB1481 with the 2N6042, 2N6042G, 2SB1020, 2SB1020A, 2SB1227, 2SB1228, 2SB1252, 2SB1252-P, 2SB1252-Q, 2SB1626, 2SB1626-O, 2SB1626-P, 2SB1626-Y, 2SB601, 2SB601-K, 2SB601-L, 2SB601-M, 2SB673, 2SB885, 2SB886, BDT62B, BDT62C, BDT64B, BDT64C, BDW47, BDW47G, BDW48, MJF127, MJF127G, MJF6668, MJF6668G, TIP107, TIP107G, TIP127, TIP127G, TIP137, TIP137G, TIP147T or TTB1020B.