KTD1047 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 140 V
• Collector-Base Voltage, max: 160 V
• Emitter-Base Voltage, max: 6 V
• Collector Current − Continuous, max: 12 A
• Collector Dissipation: 100 W
• DC Current Gain (h_fe): 60 to 200
• Transition Frequency, min: 15 MHz
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-3P
• Electrically Similar to the Popular 2SD1047 transistor

Here is an image showing the pin diagram of this transistor.The KTD1047 transistor can have a current gain of 60 to 200. The gain of the KTD1047-O will be in the range from 60 to 120, for the KTD1047-Y it will be in the range from 100 to 200.The complementary PNP transistor to the KTD1047 is the KTB817.You can replace the KTD1047 with the 2SD1047, 2SD1717, 2SD1718, KTD1047B, MJW3281A or MJW3281AG.