This part is a kind of semiconductor called CTG24S.

Function of this product has (CTG-xxx) RECTIFIER DIODES / COMMON CATHODE.

Manufacturers : Sanken Electric

Image and pinout :

Some of the text within the PDF file :

( DataSheet : ) This Material Copyrighted By Its Respective Manufacturer This Material Copyrighted By Its Respective Manufacturer This Material Copyrighted By Its Respective Manufacturer This Material Copyrighted By Its Respective Manufacturer This Material Copyrighted By Its Respective Manufacturer [ ... ]

CTG24S PDF Datasheet Download