Buy BC547 NPN Transistor. Learn its pinout, specifications, datasheet, features, and applications. Ideal for switching, amplification, and electronics projects.

BC547 NPN Transistor – Pinout, Specifications, Features & Applications

The BC547 NPN Transistor is one of the most widely used general-purpose bipolar junction transistors (BJTs) in electronic circuits. It is designed for low-current switching and signal amplification, making it an excellent choice for hobbyists, students, and professional engineers. Due to its reliability, affordability, and ease of use, the BC547 is commonly found in amplifier circuits, switching applications, sensor interfaces, and various DIY electronics projects.

BC547 Pin Configuration

The BC547 transistor has three terminals:

• Collector (C): Receives the current from the load.
• Base (B): Controls the transistor’s switching operation.
• Emitter (E): Outputs the current to the ground or negative supply.

• Key Specifications

  • Transistor Type: NPN Bipolar Junction Transistor (BJT)
  • Collector-Emitter Voltage (VCEO): 45V
  • Collector-Base Voltage (VCBO): 50V
  • Emitter-Base Voltage (VEBO): 6V
  • Maximum Collector Current (IC): 100mA
  • Power Dissipation: 500mW
  • DC Current Gain (hFE): 110–800 (depending on gain group)
  • Package: TO-92
  • Operating Temperature: -55°C to +150°C