The 2SK2420 from Sanken Electric is a MOSFET with Continous Drain Current -30 to 30 A, Drain Source Resistance 21 to 28 milli-ohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for 2SK2420 can be seen below.