2SD1413 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 60 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 20 W
• DC Current Gain (h_fe): 2000
• Operating and Storage Junction Temperature Range: -55 to +150 °C
• Package: TO-220F

Here is an image showing the pin diagram of this transistor.Sometimes the "2S" prefix is not marked on the package - the 2SD1413 might only be marked "D1413".The complementary PNP transistor to the 2SD1413 is the 2SB1023.You can replace the 2SD1413 with the 2SC3144, 2SC3145, 2SD1190, 2SD1191, 2SD1192, 2SD1276, 2SD1276-P, 2SD1276-Q, 2SD1276A, 2SD1276A-P, 2SD1276A-Q, 2SD1277, 2SD1277-P, 2SD1277-Q, 2SD1277A, 2SD1277A-P, 2SD1277A-Q, 2SD1414, 2SD1825, 2SD1826, 2SD1827, 2SD1890, 2SD1890-P, 2SD1890-Q, 2SD634, 2SD635, 2SD837-P, 2SD837-Q, 2SD837A-P or 2SD837A-Q.