BD938 Bipolar Transistor

• Type: PNP
• Collector-Emitter Voltage, max: -80 V
• Collector-Base Voltage, max: -100 V
• Emitter-Base Voltage, max: -5 V
• Collector Current − Continuous, max: -3 A
• Collector Dissipation: 30 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-220

Here is an image showing the pin diagram of this transistor.The complementary NPN transistor to the BD938 is the BD937.The BDP952 (SOT-223) and BDP954 (SOT-223) is the SMD version of the BD938 transistor. These transistors are of the same type, have similar parameters and are designed for surface mounting.You can replace the BD938 with the 2SA1488A, 2SA771, 2SB633, 2SB761A, 2SB762A, 2SB942A, BD242B, BD242C, BD244B, BD244C, BD538, BD540B, BD540C, BD800, BD802, BD810, BD938F, BD940, BD940F, BD942, BD942F, BD952, BD954, BD956, BDT84, BDT84F, BDT86, BDT86F, BDT88, BDT88F, BDX78, D44C10, D44C11, D44C12, D45C10, D45C11, D45C12, MJE15029, MJE15029G, MJE15031, MJE15031G, MJF15031 or MJF15031G.