The MDD4N60RH from Magnachip Semiconductor is a MOSFET with Continous Drain Current 2.2 to 3.5 A, Drain Source Resistance 1.7 to 2.0 ohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 3.0 to 5.0 V. Tags: Surface Mount. More details for MDD4N60RH can be seen below.