The BC558C is a PNP low-noise small signal transistor, widely used in analog amplification, signal conditioning, and audio applications. It belongs to the well-known BC55x transistor family and is valued for its stable electrical characteristics and low noise performance.
This variant is the gain group C, offering a high DC current gain, making it especially suitable for preamplifier stages and low-level signal processing. Due to its long history of use in European electronics, the BC558C is commonly found in industrial control systems, measurement equipment, and vintage audio devices.
The devices offered are through-hole TO-92 transistors, suitable for both new designs and professional repair or replacement of legacy electronics.
