The STL30P3LLH6 from STMicroelectronics is a MOSFET with Continous Drain Current 30 A, Drain Source Resistance 24 to 40 Milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 V. Tags: Surface Mount. More details for STL30P3LLH6 can be seen below.