The MMD60R580QRH from Magnachip Semiconductor is a MOSFET with Continous Drain Current 5 to 8 A, Drain Source Resistance 0.53 to 0.58 ohm, Drain Source Breakdown Voltage 600 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2.0 to 4.0 V. Tags: Surface Mount. More details for MMD60R580QRH can be seen below.