The MDD3N50GRH from Magnachip Semiconductor is a MOSFET with Continous Drain Current 1.7 to 2.8 A, Drain Source Resistance 2.1 to 2.5 ohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3.0 to 5.0 V. Tags: Surface Mount. More details for MDD3N50GRH can be seen below.