BDT42B Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -120 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -6 A
• Collector Dissipation: 65 W
• DC Current Gain (h_fe): 15 to 75
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The complementary NPN transistor to the BDT42B is the BDT41B.You can replace the BDT42B with the BD710, BD712, BD910, BD912, BDT42BF, BDT42C, BDT42CF, MJE5170, MJE5171, MJE5172, TIP42B, TIP42BG, TIP42C, TIP42CF or TIP42CG.