BC847B-7-F is a PNP switching transistor manufactured by Diodes Incorporated. It is a transistor, which is a type of semiconductor device used to amplify or switch electronic signals and electrical power. The BC847B-7-F is housed in a SOT-23 surface mount package, which is a type of package used to house semiconductor devices in a form factor that has a low profile. Its maximum collector current is 200mA, its collector-emitter breakdown voltage is 40V, and its maximum power dissipation is 625mW at 25°C.