Transistor BD911 NPN 15A 100V

The Transistor BD911 is a high-power NPN transistor specifically designed for demanding applications requiring strong current handling and excellent voltage stability. With a collector current of up to 15A and a collector-emitter voltage of 100V, the Transistor BD911 offers outstanding performance in audio power amplifiers, power supplies, motor drivers, and control systems. This transistor is well-known for its high gain, low saturation voltage, and durable construction, ensuring reliable performance even under heavy loads and harsh operating conditions.

Key Features

• Type: NPN Silicon Power Transistor

• Collector Current (Ic): 15A continuous

• Collector-Emitter Voltage (Vce): 100V

• Collector-Base Voltage (Vcb): 100V

• Emitter-Base Voltage (Veb): 5V

• DC Current Gain (hFE): 40 – 160 (depending on test conditions)

• Transition Frequency (fT): 4 MHz typical

• Package Type: TO-220 for efficient heat dissipation and easy installation

Advantages

• High collector current capacity (up to 15A) suitable for heavy-duty power circuits.

• Excellent thermal stability ensures continuous operation under varying loads.

• Low collector-emitter saturation voltage, improving energy efficiency and minimizing power loss.

• Ideal for audio amplifier output stages, providing clear, distortion-free sound.

• High durability and reliability, extending the transistor’s lifespan in industrial applications.

• Compatible with complementary PNP transistor BD912, forming an ideal push-pull configuration.

Applications

• Audio Power Amplifiers: Delivers high output power with minimal distortion and heat.

• Switching Power Supplies: Operates efficiently in high-current and medium-voltage systems.

• Motor Control Circuits: Drives motors smoothly with accurate switching and control.

• Inverter Systems: Suitable for medium-voltage, high-current power inverters and regulators.

• Lighting Systems: Provides stable current for LED and industrial lighting control systems.

Electrical Characteristics (Typical Values at 25°C)

Datasheet Summary

• Model: BD911

• Polarity: NPN

• Collector Current (Ic): 15A

• Collector-Emitter Voltage (Vce): 100V

• Power Dissipation: 90W

• Transition Frequency: 4 MHz

• Package Type: TO-220

• Complementary Pair: BD912 (PNP Transistor)

• Operating Temperature Range: -55°C to +150°C

Conclusion

The Transistor BD911 is a robust and reliable NPN transistor built for high-current and high-performance electronic systems. Its 15A current handling capability, low power loss, and high thermal efficiency make it ideal for both professional and industrial applications. Whether used in amplifier circuits, power regulators, or control systems, the Transistor BD911 NPN 15A 100V ensures superior power delivery, consistent operation, and long-lasting reliability—making it a preferred choice for engineers and technicians seeking dependable electronic components.