The UN205P23T from UN Semiconductor is a MOSFET with Continous Drain Current -4.1 A, Drain Source Resistance 46 to 75 milli-ohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -0.4 to -1.0 V. Tags: Surface Mount. More details for UN205P23T can be seen below.