BD939F Bipolar Transistor

• Type: NPN
• Collector-Emitter Voltage, max: 100 V
• Collector-Base Voltage, max: 120 V
• Emitter-Base Voltage, max: 5 V
• Collector Current − Continuous, max: 3 A
• Collector Dissipation: 19 W
• DC Current Gain (h_fe): 40 to 250
• Transition Frequency, min: 3 MHz
• Operating and Storage Junction Temperature Range: -65 to +150 °C
• Package: TO-220F
• Electrically Similar to the Popular BD939 transistor

Here is an image showing the pin diagram of this transistor.The complementary PNP transistor to the BD939F is the BD940F.The BDP953 (SOT-223) and BDP955 (SOT-223) is the SMD version of the BD939F transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BD939F with the 2SD772, 2SD772A, 2SD792, 2SD792A, BD241C, BD243C, BD539C, BD539D, BD801, BD939, BD941, BD941F, BD953, BD955, BDT85, BDT85F, BDT87, BDT87F, MJE15028, MJE15028G, MJE15030, MJE15030G, MJF15030, MJF15030G, TIP41D, TIP41E, TIP41F, TIP42D, TIP42E or TIP42F.