The IXTF1N250 from Littelfuse is a MOSFET with Continous Drain Current 1 A, Drain Source Resistance 40000 Milliohm, Drain Source Breakdown Voltage 2500 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for IXTF1N250 can be seen below.