The UN307P23T from UN Semiconductor is a MOSFET with Continous Drain Current -4.1 A, Drain Source Resistance 42 to 85 milli-ohm, Drain Source Breakdown Voltage -30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage -1 to -2.5 V. Tags: Surface Mount. More details for UN307P23T can be seen below.