The BC846B is a three-pin SOT-23-3 RoHS NPN transistor manufactured by Youtai. It is a general purpose switching and amplification transistor designed for use in electronic equipment and computer peripherals. The BC846B has a low collector cutoff current, high current gain, and low noise. Additionally, its maximum collector-base voltage is rated at 65V, making it an ideal choice for applications where a low voltage source is needed. The BC846B is suitable for use in a variety of applications such as communications systems, motor control, automotive electronics, and power management.