Table of Contents
Introductions:
The BC558 is a general-purpose PNP bipolar junction transistor (BJT). It is commonly used for low power amplification and switching applications. The BC558 transistor typically comes in a TO-92 package and is designed to handle small current loads, usually up to 100 mA. It has a voltage rating of about 30V and can be used for various audio and signal processing circuits.

BC558 Pin Configuration:
Pin Number | Pin Name |
---|---|
1. | Collector |
2. | Base |
3. | Emitter |
BC558 Pinout:

key features of the BC558 transistor:
- Type: PNP Bipolar Junction Transistor (BJT)
- Maximum Collector-Emitter Voltage (Vce): 30V
- Maximum Collector Current (Ic): 100mA
- Power Dissipation: 500mW
- Current Gain (hFE): 110–800
- Package: TO-92
- Applications: Small signal amplification, switching, audio circuits
- Low Noise: Suitable for audio and precision signal applications
- Reliability: Cost-effective and widely used in low-power circuits