The IXTA1R6N50D2 from Littelfuse is a MOSFET with Continous Drain Current 1.6 A, Drain Source Resistance 2.3 Milliohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -4.5 to -2.5 V. Tags: Surface Mount. More details for IXTA1R6N50D2 can be seen below.