The DI003N03SQ2 from Diotec Semiconductor is a MOSFET with Continous Drain Current 3 A, Drain Source Resistance 90 to 150 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -18 to 18 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for DI003N03SQ2 can be seen below.