The PMDPB55XP from Nexperia is a MOSFET with Continous Drain Current -4.5 to -2.2 A, Drain Source Resistance 55 to 135 milliohm, Drain Source Breakdown Voltage -20 V, Gate Source Voltage -12 to 12 V, Gate Source Threshold Voltage -0.9 to -0.47 V. Tags: Surface Mount. More details for PMDPB55XP can be seen below.