BC558 Transistor (30V, 0.1A)

Overview

The BC558 is a reliable general-purpose PNP transistor housed in a compact TO-92 package. With a collector-emitter voltage rating of 30V and a collector current capacity of 0.1A, it is an excellent choice for low-power switching and signal amplification tasks. Whether you're a hobbyist building your first circuit or an engineer prototyping a design, the BC558 offers consistent performance and wide availability, making it a staple in any electronics kit.

Key Features

• PNP Transistor: Complements NPN types (like BC548) for push-pull and other dual-transistor configurations.
• High Voltage Rating: 30V collector-emitter voltage suitable for a variety of low-voltage applications.
• Low Current Capability: Handles up to 0.1A collector current, ideal for small-signal amplification and switching.
• TO-92 Package: Compact, through-hole design that is easy to mount on perfboards and PCBs.
• Wide Operating Temperature Range: Reliable performance from -55°C to +150°C.
• High DC Current Gain (hFE): Typically ranges from 120 to 800, ensuring good amplification characteristics.

Technical Specifications

• Type: PNP
• Collector-Emitter Voltage (VCEO): 30V
• Collector-Base Voltage (VCBO): 30V
• Emitter-Base Voltage (VEBO): 5V
• Collector Current (IC): 0.1A (100mA)
• Power Dissipation (PD): 500mW
• DC Current Gain (hFE): 120-800 (typical)
• Transition Frequency (fT): 150MHz (typical)
• Operating Temperature Range: -55°C to +150°C
• Package: TO-92

Applications & Use Cases

• Signal Amplification: Amplify weak analog signals in audio preamplifiers, sensor interfaces, and other low-power circuits.
• Switching: Drive small loads like LEDs, relays, or transistors in logic-level switching applications.
• Oscillator Circuits: Use in simple oscillator designs for timing and waveform generation.
• Complementary Pairs: Pair with NPN transistors (e.g., BC548) to create push-pull amplifiers and other symmetrical configurations.
• Educational Projects: Ideal for learning about transistor characteristics, biasing, and circuit design in classrooms and maker spaces.

What's Included

• 1x BC558 Transistor (TO-92 package)

Compatibility

• With Other Components: Works with resistors, capacitors, diodes, and other standard electronic components.
• With Development Boards: Can be used on breadboards, perfboards, and PCBs in conjunction with Arduino, Raspberry Pi, and other microcontrollers (when properly interfaced with base resistors).
• Complementary Transistor: Pairs well with BC548 (NPN) for symmetrical circuit designs.

MOKWN Recommendation

For Egyptian makers, students, and electronics enthusiasts, the BC558 is a must-have in your component drawer. Its versatility, low cost, and ease of use make it perfect for a wide range of projects, from simple LED drivers to audio preamps. Whether you're in Cairo, Alexandria, or anywhere in Egypt, MOKWN ensures fast delivery and genuine components. Add the BC558 to your cart and bring your circuits to life!