The STL26NM60N from STMicroelectronics is a MOSFET with Continous Drain Current 19 A, Drain Source Resistance 160 to 185 Milliohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3 to 5 V. Tags: Surface Mount. More details for STL26NM60N can be seen below.