2SC3886A, MBR ISC Inchange Semic, Silicon NPN Power Transistor, 
Vcbo 1500V, Vceo 600V, Ic 8A, Tc 25°C 50W, 
High switching speed (tf 0.15µs), 
Case type: TO-3PF, SOT-93 
Marking: C3886A,
BCE