TTC3710B Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 80 V
• Collector-Base Voltage, max: 80 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 12 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 120 to 240
• Transition Frequency, min: 80 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.The complementary PNP transistor to the TTC3710B is the TTA1452B.You can replace the TTC3710B with the 2SC3346, 2SC3346-Y, 2SC3710, 2SC3710-Y, 2SC3710A, 2SC3710A-Y, BD545B, BD545C, BDT83, BDT83F, BDT85, BDT85F, BDT87 or BDT87F.