The BC858C from Yangjie Electronic Technology is a Bipolar Junction Transistor with Emitter Base Voltage -6 V, Base Emitter Saturation Voltage -1.1 V, Emitter Cut off Current -0.1 µA, Collector Base Voltage -30 V, Collector Cut off Current -0.1 µA. Tags: Surface Mount, PNP Transistor. More details for BC858C can be seen below.