This part is a kind of semiconductor called K790.
Function of this product has 2SK790.
Manufacturers : Toshiba
Image and pinout :

Some of the text within the PDF file :
Free Datasheet http://www.net/ Free Datasheet http://www.net/ Free Datasheet http://www.net/ Free Datasheet http://www.net/ Free Datasheet http://www.net/ [ ... ]
K790 PDF Datasheet Download
