One great way to find part numbers when you only have a short SMD marking code (when websites like don't yield anything), is to punch the code into google together with the type of device you think it might be (and variations of it that manufacturers may use).
Quite often it yields you the datasheet which usually contains the SMD marking.
The SMD components marking codes database - Index page
A searchable database of electronics SMD components marking codes. Index page.