The STL6N3LLH6 from STMicroelectronics is a MOSFET with Continous Drain Current 3.75 to 13 A, Drain Source Resistance 0.021 to 0.040 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 1 V. Tags: Surface Mount. More details for STL6N3LLH6 can be seen below.