ElectronicsThe BC847B 1F with 45V 200mW 200@2mA, 5V 100mA NPN SOT-23 bipolar transistor manufactured by Hong Kong Chuangji Electronics is a ROHS-compliant, ultra-small, 3-terminal negative-positive-negative (NPN) silicon surface mount transistor, designed for use in low voltage, low current applications such as analog and digital switching, sensing, and signal processing. It has a maximum continuous collector current rating of 100mA, a total dissipation up to 200mW, and a maximum voltage rating of 45V. Ideal applications for the BC847B include audio amplifiers, switching, circuit protection, level shifting, and current limiting.