This part is a kind of semiconductor called MDD1951.

Function of this product has Single N-Channel Trench MOSFET.

Manufacturers : MagnaChip

Image and pinout :

Some of the text within the PDF file :

MDD1951– Single N-Channel Trench MOSFET 60V MDD1951 Single N-Channel Trench MOSFET 60V, 17.9A, 45.0mΩ General Description The MDD1951 uses advanced MagnaChip’s trench MOSFET Technology to provide high performance in onstate resistance, switching performance and reliability Low RDS(ON), low gate charge can be offering superior benefit in the application. Features VDS = 60V ID = 17.9A @VGS = 10V RDS(ON) < 45.0mΩ@ VGS = 10V < 55.0mΩ@ VGS = 4.5V Applications Inverters General purpose applications D G S Absolute Maximum Ratings (TC =25oC unless otherwise noted) Drain-Source Voltage Gate-Source Voltage Characteristics Continuous Drain Current (Note 2) Pulsed Drain Current Power Dissipation for Single Operation Single Pulse Avalanche Energy Junction and Storage Temperature [ ... ]

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