The TSM090N03ECP from Taiwan Semiconductor is a MOSFET with Continous Drain Current 50 A, Drain Source Resistance 7.5 to 14 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 TSM090N03ECP can be seen below.