BD945 Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 32 V
• Collector-Base Voltage, max: 32 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 5 A
• Collector Dissipation: 40 W
• DC Current Gain (h_fe): 85 to 475
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-220

Here is an image showing the pin diagram of this transistor.The complementary PNP transistor to the BD945 is the BD946.You can replace the BD945 with the 2SC1985, BD201, BD203, BD243, BD243A, BD301, BD303, BD533, BD535, BD539, BD539A, BD543, BD543A, BD545, BD545A, BD795, BD797, BD807, BD947, BD949, BDT81, BDT81F or D44H8.