KTC2028 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 100 V
• Collector-Base Voltage, max: 100 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 5 A
• Collector Dissipation: 30 W
• DC Current Gain (h_fe): 70 to 240
• Transition Frequency, min: 30 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 KTC2028 transistor can have a current gain of 70 to 240. The gain of the KTC2028O will be in the range from 70 to 140, for the KTC2028Y it will be in the range from 120 to 240.The complementary PNP transistor to the KTC2028 is the KTA1049.The BDP953 (SOT-223) is the SMD version of the KTC2028 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the KTC2028 with the 2SC2334, 2SD1355, 2SD1407, 2SD1407A, 2SD2059, 2SD363, 2SD525, 2SD772, 2SD772A, 2SD792, 2SD792A, 2SD866A, BD243C, BD539C, BD539D, BD543C, BD545C, BD801, BD953, BD955, BDT85, BDT85F, BDT87, BDT87F, KSC2334, KSD363, KTC2018, KTD2059, MJE15028, MJE15028G, MJE15030, MJE15030G, MJF15030, MJF15030G, TIP41D, TIP41E, TIP41F, TIP42D, TIP42E or TIP42F.