2SK2750 TOSHIBA, Field-Effect Transistor Silicon N-Channel MOSFET, 
Vdss 600V, Vgss ±30V, Id 3.5A, Tc=25°C Pd 35W, RDS(on) 1.7Ω, 
Case type: TO-220FP ISOL
Marking: K2750,
GDS 
2SK2750 = 2SK2545 (6A),