The STL24N60M2 from STMicroelectronics is a MOSFET with Continous Drain Current 18 A, Drain Source Resistance 186 to 210 Milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage - 25 to 25 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for STL24N60M2 can be seen below.