The STB200NF03 from STMicroelectronics is a MOSFET with Continous Drain Current 120 A, Drain Source Resistance 0.0032 to 0.0036 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Through Hole. More details for STB200NF03 can be seen below.