This part is a kind of semiconductor called MT3203.

Function of this product has N-Channel Low Qg MOSFET.

Manufacturers : MT Semiconductor

Image and pinout :

Some of the text within the PDF file :

MT3203 MOS-TECH Semiconductor Co.,LTD N MT3203 N-Channel Low Qg® MOSFET 30V, 100A, 3.3mΩ General Description This N-Channel MOSFET has been designed specifically to improve the overall ef ficiency of DC/ DC converters using either synchronous or conven tional swit ching PWM controllers. It has been optimized for low gate charge, low rDS(ON) and fast switching speed. Applications • DC/DC converters Features • rDS(ON) = 3.3mΩ, VGS = 10V, ID = 40A • rDS(ON) = 4.5mΩ, VGS = 4.5V, ID = 40A • High performance t rench t echnology for ext remely low rDS(ON) • Low gate charge • High power and current handling capability (FLANGE) DRAIN SOURCE DRAIN GATE G TO-220 MOSFET Maximum Ratings TC = 25°C unless otherwise noted Symbol VDSS VGS ID Parameter Drain to Source Voltage [ ... ]

MT3203 PDF Datasheet Download