This part is a kind of semiconductor called YG805C10R.

Function of this product has SCHOTTKY BARRIER DIODE.

Manufacturers : Fuji Electric

Image and pinout :

Some of the text within the PDF file :

YG805C10R SCHOTTKY BARRIER DIODE (100V / 20A TO-22OF15) Outline Drawings 10±0.5 ø3.2 +0.2 -0.1 4.5±0.2 2.7±0.2 6.3 2.7±0.2 1 2 3 3.7±0.2 1.2±0.2 13Min Features Low VF Super high speed switching. High reliability by planer design. 15±0.3 0.7±0.2 2.54±0.2 0.6 +0.2 -0 2.7±0.2 JEDEC EIAJ SC-67 Applications High speed power switching. Connection Diagram 2 1 3 Maximum Ratings and Characteristics Absolute Maximum Ratings Item Repetitive peak reverse voltage Repetitive peak surge reverse voltage Isolating voltage Average output current Suege current Operating junction temperature Storage temperature Symbol VRRM VRSM Viso IO IFSM Tj Tstg tw=500ns, duty=1/40 Terminals to Case, AC. 1min. duty=1/2, Tc=91°C Square wave Sine wave 10ms Conditions Rating 100 100 1500 20* 10 [ ... ]

YG805C10R PDF Datasheet Download