BC556 Transistor (65V, 0.1A)

Overview

The BC556 is a widely used PNP bipolar junction transistor (BJT) designed for general-purpose switching and amplification. With a collector-emitter voltage rating of 65V and a continuous collector current of 100mA, it is a reliable and cost-effective solution for a wide range of analog and digital circuits. Whether you're a hobbyist, student, or professional engineer, the BC556 is a staple component for your electronics workbench.

Key Features

• PNP Transistor: Complements NPN types like the BC546, BC547, and BC548.
• High Voltage Rating: Collector-Emitter Voltage (VCEO) of 65V.
• Moderate Current Handling: Continuous collector current (IC) up to 100mA.
• Low Noise: Suitable for audio preamplifier stages.
• High Current Gain (hFE): Typically 110 to 800, ensuring good amplification.
• Through-Hole Package: TO-92 package, easy to use on breadboards and PCBs.
• Wide Operating Temperature: -55°C to +150°C.

Technical Specifications

• Type: PNP
• Collector-Emitter Voltage (VCEO): 65V
• Collector-Base Voltage (VCBO): 80V
• Emitter-Base Voltage (VEBO): 5V
• Collector Current (IC): 100mA
• Power Dissipation (Ptot): 500mW
• DC Current Gain (hFE): 110 to 800 (at IC=2mA, VCE=5V)
• Transition Frequency (fT): 150MHz (typical)
• Operating Temperature Range: -55°C to +150°C
• Package: TO-92

Applications & Use Cases

• Signal Amplification: Ideal for audio preamps, sensor signal conditioning, and small-signal amplification.
• Switching Circuits: Use in relay drivers, LED drivers, and logic level shifting.
• Voltage Regulation: In simple linear regulators and voltage references.
• Oscillator Circuits: Suitable for low-frequency oscillator designs.
• Hobbyist Projects: Perfect for Arduino, Raspberry Pi, and other microcontroller-based projects.
• Educational Purposes: Great for learning transistor theory and circuit design.

What's Included

• 1x BC556 PNP Transistor (TO-92 package)

Compatibility

• Complementary NPN: BC546, BC547, BC548
• Equivalent PNP: 2N3906, 2SA1015, BC557 (similar but lower voltage)
• Microcontroller Projects: Works with 3.3V and 5V logic levels.
• Breadboards: Standard 0.1" pitch leads fit perfectly.

MOKWN Recommendation

The BC556 is an essential addition to any electronics enthusiast's toolkit. Its high voltage rating and reliable performance make it a versatile choice for both simple and complex circuits. Whether you are prototyping on a breadboard or designing a PCB for production, the BC556 offers excellent value and consistent quality. Stock up today and keep your projects moving forward!