The TSM150NB04CR from Taiwan Semiconductor is a MOSFET with Continous Drain Current 41 A, Drain Source Resistance 10 to 15 milliohm, Drain Source Breakdown Voltage 40 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 2 to 4 V. Tags: Surface Mount. More details for TSM150NB04CR can be seen below.