The IXTH30N50L2 from Littelfuse is a MOSFET with Continous Drain Current 300 A, Drain Source Resistance 215 Milliohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2.5 to 4.5 V. Tags: Through Hole. More details for IXTH30N50L2 can be seen below.