The STD30NF06 from STMicroelectronics is a MOSFET with Continous Drain Current 28 A, Drain Source Resistance 20 to 28 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 STD30NF06 can be seen below.