This part is a kind of semiconductor called HY1506U.

Function of this product has (HY1506U / HY1506I) N-Channel Enhancement Mode MOSFET.

Manufacturers : HOOYI

Image and pinout :

Some of the text within the PDF file :

HY1506P/U/I N-Channel Enhancement Mode MOSFET Features • • • • 60V/55A, RDS(ON)=10.5 mΩ (typ.) @ VGS=10V Avalanche Rated Reliable and Rugged Lead Free and Green Devices Available (RoHS Compliant) G D Pin Description S D S G S D G TO-220 I-PAK(TO-251) D TO-262 Applications • Power Management for Inverter Systems. G S N-Channel MOSFET Ordering and Marking Information Package Code P HY1506 ÿ YYWWJ G U I HY1506 HY1506 ÿ YYWWJ G ÿ YYWWJ G P : TO220-3L D : I-PAK Date Code YYWW Assembly Material G : Lead Free Device I : TO262-3L Note: HOOYI lead-free products contain molding compounds/die attach materials and 100% matte tin plate termination finish; which are fully compliant with RoHS. HOOYI lead-free products meet or exceed the lead-free requirements of IPC/JE [ ... ]

HY1506U PDF Datasheet Download