This part is a kind of semiconductor called HS38B.

Function of this product has HS38B.

Manufacturers : ETC

Image and pinout :

Some of the text within the PDF file :

Free Datasheet http://www.datasheet-pdf.com/ Free Datasheet http://www.datasheet-pdf.com/ 整理：www.ouravr.com / 阿莫（armok）/ 2005-11-02 Free Datasheet http://www.datasheet-pdf.com/ [ ... ]

HS38B PDF Datasheet Download