The IRFM120A from onsemi is a MOSFET with Continous Drain Current 2.3 A, Drain Source Resistance 200 milliohm, Drain Source Breakdown Voltage 100 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for IRFM120A can be seen below.