The IRFN5210 from TT Electronics is a MOSFET with Continous Drain Current -3.4 A, Drain Source Resistance 60 milliohm, Drain Source Breakdown Voltage -100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -4 to -2 V. Tags: Surface Mount. More details for IRFN5210 can be seen below.