Discrete IC Printed label
Your T9F is a PLVA665A Zener Diode.  Specs for it can easily be found through google.  
Such as here.   That is a 6.5V Zener, rated for 250mA.

Code T9F found in this book - SMD-PHILIPS Marking Codes Small Signal Transistors and Diodes.  Other copies of the book can be found as PDF through google.

I can't find anything at all about the 2U90.  Could you post a picture of it?