The TSM250N02DCQ from Taiwan Semiconductor is a MOSFET with Continous Drain Current 5.8 A, Drain Source Resistance 20 to 55 milliohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -10 to 10 V, Gate Source Threshold Voltage 0.4 to 0.8 V. Tags: Surface Mount. More details for TSM250N02DCQ can be seen below.