The TSM040N03CP from Taiwan Semiconductor is a MOSFET with Continous Drain Current 90 A, Drain Source Resistance 3.1 to 6 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.2 to 2.5 V. Tags: Surface Mount. More details for TSM040N03CP can be seen below.