The UN200N23T from UN Semiconductor is a MOSFET with Continous Drain Current 6 A, Drain Source Resistance 16 to 30 milli-ohm, Drain Source Breakdown Voltage 20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage 0.5 to 1 V. Tags: Surface Mount. More details for UN200N23T can be seen below.