Hi, I was hoping if you guys could help me identify these two SMD components. I'm new with SMD components so any tips on figuring out the component markings will be greatly appreciated.

The IC has got the markings 7639 X37C. Its used for a flow meter sensor.

The next one is a surface mount transistor, with the marking 1AMW on it. It would make a lot of sense if it was a pnp transistor with the middle pin being the base. I have shown the diagram I drew and the diode check measurement results I got. I have indicated the plus sign as the red probe and the negative sign as the black probe of the DMM.

Thanks so much

 

You may find some help at sites like this...
http://www.marsport.org.uk/smd/mainframe.htm
But it can often be very hard to work out. When I buy a surface mount part that has an odd number, I write that number on the pack.