The TSM020N04LCR from Taiwan Semiconductor is a MOSFET with Continous Drain Current 170 A, Drain Source Resistance 1.5 to 2.6 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.5 V. Tags: Surface Mount. More details for TSM020N04LCR can be seen below.