The STL42P6LLF6 from STMicroelectronics is a MOSFET with Continous Drain Current -42 A, Drain Source Resistance 23 to 34 Milliohm, Drain Source Breakdown Voltage -60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -2.5 to -1 V. Tags: Surface Mount. More details for STL42P6LLF6 can be seen below.