The TSM085NB03DCR from Taiwan Semiconductor is a MOSFET with Continous Drain Current 51 A, Drain Source Resistance 6.5 to 15 milliohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.3 to 2.5 V. Tags: Surface Mount. More details for TSM085NB03DCR can be seen below.