The STL12P6F6 from STMicroelectronics is a MOSFET with Continous Drain Current 12 A, Drain Source Resistance 130 to 160 Milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for STL12P6F6 can be seen below.