2SK4108 TOSHIBA Field Effect Transistor Silicon N-Channel MOS Type (π-MOS VI) 2SK4108 Switching Regulator Applications Unit: mm z Low drain source ON resistance : RDS (ON) = 0. 21Ω (typ.) z High forward transfer admittance : |Yfs| = 14 S (typ.) z Low leakage current : IDSS = 100 μA (max) (VDS = 500 V) z Enhancement mode : Vth = 2.0 to 4.0 V (VDS = 10 V, ID = 1 mA) Absolute Maximum Ratings (Ta = 25°C) Characteristic Symbol Rating Unit Drain source voltage Drain