2SD1445A-Q Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 40 V
• Collector-Base Voltage, max: 50 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 10 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 90 to 180
• Transition Frequency, min: 120 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 2SD1445A-Q transistor can have a current gain of 90 to 180. The gain of the 2SD1445A will be in the range from 90 to 260, for the 2SD1445A-P it will be in the range from 130 to 260.Sometimes the "2S" prefix is not marked on the package - the 2SD1445A-Q might only be marked "D1445A-Q".The complementary PNP transistor to the 2SD1445A-Q is the 2SB948A-Q.You can replace the 2SD1445A-Q with the 2SC3255, 2SC3345, 2SC3346, 2SC3709, 2SC3709A, 2SC3710, 2SC3710A, 2SC3748, 2SD1062, 2SD1669, BD545, BD545A, BD545B, BD807, BD809, BDT81, BDT81F, BDT83, BDT83F, BDT91, BDT91F, BDT93, BDT93F, D44H11, D44H11FP or D44H8.