The TSM4436CS from Taiwan Semiconductor is a MOSFET with Continous Drain Current 8 A, Drain Source Resistance 30 to 43 milliohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 3 V. Tags: Surface Mount. More details for TSM4436CS can be seen below.