BC547C

The BC547C is a widely used NPN bipolar junction transistor. It is part of the BC547 series, which includes variations like BC547A, BC547B, and BC547C, differing primarily in their current gain (hFE) range. This particular variant, the BC547C, is specified to have a higher current gain compared to the A and B variants. These transistors are designed for general-purpose amplification and switching applications in electronic circuits. They are typically housed in a TO-92 package, a small plastic encapsulation with three leads.

The BC547C has a maximum collector current rating of 100 mA and a maximum collector-emitter voltage of 45 V. Its transition frequency (fT) is typically around 300 MHz, making it suitable for low-frequency to medium-frequency applications. The transistor's low power dissipation and small size make it a cost-effective choice for hobbyist projects and mass-produced consumer electronics. It is commonly found in amplifier stages, driver circuits, and as a low-power switch. Datasheets provide detailed specifications regarding its electrical characteristics, including leakage currents, saturation voltages, and thermal properties.