The PMX400UP from Nexperia is a MOSFET with Continous Drain Current -0.9 to -0.5 A, Drain Source Resistance 334 to 950 Milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -0.9 to -0.5 V. Tags: Surface Mount. More details for PMX400UP can be seen below.