Diotec BC558A is a discrete bipolar junction transistor (BJT) designed in a PNP configuration, housed in a TO-92 package. This silicon-based small signal amplifier is well-suited for applications requiring moderate amplification with low current, making it ideal for audio and switching circuits within electronic devices. The BC558A excels in providing stable performance with a maximum collector-emitter voltage of 30 volts and a collector current of up to 100 milliamperes. Engineers typically utilise this transistor in discrete amplification tasks within various consumer electronics, where its reliable operation and standard gain characteristics are crucial. https://elecena.pl/product/29680011/diotec-bc558a-transistor-bjt-discrete-pnp-to-92-small-signal-amplifier 2026-01-10 https://elecena.pl/product/29680011/diotec-bc558a-transistor-bjt-discrete-pnp-to-92-small-signal-amplifier 2026-05-08