This is N-channel MOSFET 170 A 75 V HEXFET 3-Pin TO-220AB manufactured by Infineon. The manufacturer part number is IRFB3207PBF. It has a maximum of 75 v drain source voltage. The product is available in through hole configuration. While 180 a of maximum continuous drain current. The product is available in [Cannel Type] channel. The package is a sort of to-220ab.