The TSM9434CS from Taiwan Semiconductor is a MOSFET with Continous Drain Current -6.4 A, Drain Source Resistance 31 to 60 milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -8 to 8 V, Gate Source Threshold Voltage -1 to -0.4 V. Tags: Surface Mount. More details for TSM9434CS can be seen below.