The TSM4ND65CI from Taiwan Semiconductor is a MOSFET with Continous Drain Current 4 A, Drain Source Resistance 1850 to 2600 milliohm, Drain Source Breakdown Voltage 650 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2.5 to 3.8 V. Tags: Through Hole. More details for TSM4ND65CI can be seen below.