BC548 Transistor (30V, 0.1A)

Overview

Meet the BC548 Transistor (30V, 0.1A) — a classic NPN bipolar junction transistor (BJT) that has been a staple in electronics for decades. Whether you're a hobbyist building your first blinking LED circuit, a student learning about amplification, or an engineer prototyping a switch, the BC548 delivers reliable performance in a compact TO-92 package. Its low cost, wide availability, and straightforward operation make it an essential component in any electronics toolkit.

Key Features

• General-Purpose NPN Transistor: Ideal for low-power switching and amplification tasks.
• Voltage & Current Ratings: Handles up to 30V and 100mA, perfect for small-scale projects.
• High Current Gain (hFE): Typically ranges from 110 to 800, ensuring effective signal amplification.
• Low Noise: Suitable for audio pre-amplification stages.
• TO-92 Package: Compact, through-hole design easy to solder on PCBs and breadboards.
• RoHS Compliant: Environmentally friendly, lead-free.

Technical Specifications

• Type: NPN
• Collector-Emitter Voltage (VCE): 30V
• Collector-Base Voltage (VCB): 30V
• Emitter-Base Voltage (VEB): 5V
• Collector Current (IC): 100mA (max)
• Power Dissipation (PC): 500mW
• DC Current Gain (hFE): 110 - 800 (at 2mA, 5V)
• Transition Frequency (fT): 300MHz
• Operating Temperature Range: -55°C to +150°C
• Package: TO-92

Applications & Use Cases

• Switching Circuits: Drive LEDs, relays, and small DC motors.
• Amplifiers: Audio pre-amplifiers, signal conditioning.
• Oscillators: Generate clock signals in basic circuits.
• Sensor Interfaces: Read analog signals from LDRs, thermistors, and more.
• Educational Projects: Perfect for learning transistor fundamentals.

What's Included

• 1x BC548 NPN Transistor (TO-92 package)

Compatibility

• Works with standard breadboards and PCBs.
• Compatible with other general-purpose NPN transistors like 2N3904, BC547, and BC549 in most low-power applications.
• Pair with resistors, capacitors, and microcontrollers (Arduino, ESP32, Raspberry Pi) for a wide range of projects.

MOKWN Recommendation

For Egyptian makers and students, the BC548 is an indispensable component for learning and prototyping. Its versatility and low cost make it a must-have in your component drawer. Whether you're building a simple switch or experimenting with audio circuits, this transistor will not disappoint. Stock up today and keep your projects moving!