The MDF9N50FTH from Magnachip Semiconductor is a MOSFET with Continous Drain Current 4.8 to 8.0 A, Drain Source Resistance 0.75 to 0.9 ohm, Drain Source Breakdown Voltage 500 V, Gate Source Voltage -30 to 30 V, Gate Source Threshold Voltage 2.5 to 4.5 V. Tags: Through Hole. More details for MDF9N50FTH can be seen below.