2SB1225 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -60 V
• Collector-Base Voltage, max: -70 V
• Emitter-Base Voltage, max: -6 V
• Collector Current − Continuous, max: -10 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 2000
• Transition Frequency, min: 20 MHz
• 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 2SB1225 might only be marked "B1225".The complementary NPN transistor to the 2SB1225 is the 2SD1827.You can replace the 2SB1225 with the 2SB882, MJF6668 or MJF6668G.