The STL58N3LLH5 from STMicroelectronics is a MOSFET with Continous Drain Current 11.5 to 64 A, Drain Source Resistance 0.0076 to 0.0112 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage 22 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for STL58N3LLH5 can be seen below.