The UN600N23T from UN Semiconductor is a MOSFET with Continous Drain Current 3 A, Drain Source Resistance 75 to 110 milli-ohm, Drain Source Breakdown Voltage 60 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1 to 2.2 V. Tags: Surface Mount. More details for UN600N23T can be seen below.