2SC3260 MBR, ShindengHK, ISC, Silicon NPN Darl Epitaxial Planar Transistor, 
Vcbo 800V, Ic 3A, Tc 25°C 50W, 
Case type: TO-247,TO-3PF isol, 

Marking: C3260, 
BCE

High-speed high-voltage power switch..