The IRF240 from TT Electronics is a MOSFET with Continous Drain Current 18 A, Drain Source Resistance 180 to 210 milliohm, Drain Source Breakdown Voltage 200 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for IRF240 can be seen below.