KTC1003 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 60 V
• Collector-Base Voltage, max: 200 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 4 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 30 to 150
• Transition Frequency, min: 8 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.You can replace the KTC1003 with the 2N6292, 2N6292G, 2N6293, 2N6473, 2N6474, 2N6487, 2N6487G, 2N6488, 2N6488G, 2SC2075, 2SC2233, 2SD1265, 2SD1265A, 2SD1274, 2SD1274A, 2SD1274B, 2SD389, 2SD389A, 2SD823, BD203, BD243A, BD243B, BD243C, BD303, BD707, BD709, BD711, BD743A, BD743B, BD743C, BD797, BD799, BD801, BD807, BD809, BD907, BD909, BD911, BDT91, BDT91F, BDT93, BDT93F, BDT95, BDT95F, BDX77, NTE196, TIP41D or TIP42D.