The IXTH1N450HV from Littelfuse is a MOSFET with Continous Drain Current 1 A, Drain Source Resistance 80000 Milliohm, Drain Source Breakdown Voltage 4500 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 3.5 to 6 V. Tags: Through Hole. More details for IXTH1N450HV can be seen below.