This part is a kind of semiconductor called MDD1752.
Function of this product has N-Channel Trench MOSFET.
Manufacturers : MagnaChip Semiconductor
Image and pinout :

Some of the text within the PDF file :
MDD1752– N-Channel Trench MOSFET 40V, 50A, 8.0mΩ MDD1752 N-Channel Trench MOSFET 40V, 50A, 8.0mΩ General Description The MDD1752 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 = 40V ID = 50A @VGS = 10V RDS(ON) < 8.0mΩ @ VGS = 10V < 10.5mΩ @ VGS = 4.5V Applications Inverters General purpose applications D G http://www.DataSheet4U.net/ S Absolute Maximum Ratings (TC =25oC unless otherwise noted) Characteristics Drain-Source Voltage Gate-Source Voltage Continuous Drain Current Pulsed Drain Current Power Dissipation for Single Operation Single Pulse Avalanche Energy Junction and Storage Te [ ... ]
MDD1752 PDF Datasheet Download
