BC547 NPN Transistor – General Purpose Amplifier & Switch

The BC547 is a popular NPN BJT transistor used in a variety of electronics circuits for switching, signal amplification, and pulse control. With a collector current up to 100mA and low noise performance, it's ideal for small signal transistors in analog and digital circuits.

This transistor is commonly used by Arduino users, electronics students, DIY hobbyists, and in low-current relay drivers, sensor interfaces, and oscillator circuits.

🔧 Specifications:

• Transistor Type: NPN

• Package: TO-92 (Through-Hole)

• Collector-Emitter Voltage (Vceo): 45V

• Collector Current (Ic): 100mA max

• DC Current Gain (hFE): 110 – 800

• Transition Frequency (fT): 150 MHz

• Power Dissipation: 500 mW

• Pin Configuration: Emitter, Base, Collector (E-B-C)

• Package Material: Epoxy Moulded Case

🎯 Applications:

• Low-power switching circuits

• Signal amplification

• Relay drivers and LED control

• Oscillator and timer circuits

• Audio signal pre-amplifiers

• DIY electronics and Arduino projects

✅ Why Choose BC547?

• ✅ Versatile and affordable NPN transistor

• ✅ Reliable for small-signal amplification

• ✅ Easy to use in prototyping and breadboards

• ✅ Compatible with Arduino and microcontrollers

• ✅ Excellent for educational purposes

📦 Package Includes:

• 1 × BC547 NPN Transistor