TIP42D Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 120 V
• Collector-Base Voltage, max: 160 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 6 A
• Collector Dissipation: 65 W
• DC Current Gain (h_fe): 15
• 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 PNP transistor to the TIP42D is the TIP41D.You can replace the TIP42D with the 2N6533, 2SC2527, 2SC3834, 2SC4153, 2SD363, 2SD363-O, 2SD363-R, 2SD363-Y, BD651, BDT63C, BDT65C, BDT87, BDT87F, BDW43, BDW63D, BDW73D, BDX33D, BDX53D, BDX53E, BDX53F, KSD363, KSD363-O, KSD363-R, KSD363-Y, MJE15028, MJE15028G, MJE15030, MJE15030G, MJE5180, MJE5181, MJE5182, MJF15030, MJF15030G, TIP41D, TIP41E, TIP41F, TIP42E or TIP42F.