This part is a kind of semiconductor called FBM80N70P.

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

Manufacturers : FBM

Image and pinout :

Some of the text within the PDF file :

FBM80N70P/B FBM@ N-Channel Enhancement Mode MOSFET Features • 70V/80A RDS(ON) = 6.0 mΩ (typ.) @ VGS=10V • 100% avalanche tested • Reliable and Rugged • Lead Free and Green Devices Available (RoHS Compliant) Applications • Switching application • Power Management for Inverter Systems. Pin Description DS G TO-220FB-3L D DS G TO-263-2L G N-Channel MOSFET Ordering and Marking Information S P FBM80N70 YYÿ XXXJWW G B FBM80N70 YYÿ XXXJWW G Package Code P : TO-220FB-3L B : TO-263-2L Date Code YYXXX WW Assembly Material G : Lead Free Device Note: FBM lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. FBM lead-free products meet or exceed the lead-free requirements of IPC/JED [ ... ]

FBM80N70P PDF Datasheet Download