View 2sk2914 datasheet:

2SK2914 TOSHIBA Field Effect Transistor Silicon N Channel MOS Type (?-MOSV) 2SK2914 Chopper Regulator, DC-DC Converter and Moter Drive Applications Unit: mm Low drain-source ON resistance : RDS = 0.42 ? (typ.) (ON) High forward transfer admittance : |Y | = 7.5 S (typ.) fs Low leakage current : I = 100 µA (max) (V = 250 V) DSS DS Enhancement-mode : Vth = 1.5~3.5 V (V = 10 V, I = 1 mA) DS D Maximum Ratings (Ta = 25°C) Characteristics Symbol Rating Unit Drain-source voltage VDSS 250 V Drain-gate voltage (RGS = 20 k?) VDGR 250 V Gate-source voltage VGSS ±20 V DC (Note 1) ID 7.5 Drain current A Pulse (Note 1) IDP 30 Drain power dissipation (Tc = 25°C) PD 20 W Single pulse avalanche energy JEDEC TO-220AB EAS 110 mJ (Note 2) JEITA SC-46 Avalanche c