The R4P030N03HZGT100 from ROHM Semiconductor is a MOSFET with Continous Drain Current -3 to 3 A, Drain Source Resistance 90 to 240 milli-ohm, Drain Source Breakdown Voltage 30 V, Gate Source Voltage -20 to 20 V, Gate Source Threshold Voltage 1.0 to 2.5 V. Tags: Surface Mount. More details for R4P030N03HZGT100 can be seen below.