This part is a kind of semiconductor called NCE85H21C.

Function of this product has N-Channel Enhancement Mode Power MOSFET.

Manufacturers : NCE Power Semiconductor

Image and pinout :

Some of the text within the PDF file :

http://www.ncepower.com Pb Free Product NCE85H21C NCE N-Channel Enhancement Mode Power MOSFET Description The NCE85H21C uses advanced trench technology and design to provide excellent RDS(ON) with low gate charge. It can be used in automotive applications and a wide variety of other applications. General Features ● VDSS =85V,ID =210A RDS(ON) < 4mΩ @ VGS=10V ● Good stability and uniformity with high EAS ● Special process technology for high ESD capability ● High density cell design for ultra low Rdson ● Fully characterized avalanche voltage and current ● Excellent package for good heat dissipation Application ● Automotive applications ● Hard switched and high frequency circuits ● Uninterruptible power supply Schematic diagram Marking and pin assignment 100% UIS TEST [ ... ]

NCE85H21C PDF Datasheet Download