Help ID this SMD component

[ericj]

I'm hoping someone can help identify this SMD component (marked as C3 2G). It's marked as D12 & D13 on the PCB. Thanks!   

[Drakon]

look like transistors to me since they have 3 pins...I could be wrong though

[cmv2]

R resistors?
D Darlington component?

[jpx72]

C3 2G - those are RF Schottky Barrier Diodes type HSMS-2823
Search for datasheet on "HSMS-2823"

[ericj]

Thanks jpx72! I figured they were diodes based on how the PCB was marked, but how the hell did you figure that out? 

[jpx72]

Well as you said, it's marked as Dxx so that was my first clue on diode, and secondly check SMD codebook:
http://elektronik.googlecode.com/files/SMD_Catalog222.pdf (3MB !)
on page 37 are four "C3" components and only one of them is diode - dual HP2835 schottky
(yep I got some clues from my father, he's an old electrician Thanks Dad! )

[ericj]

Nice detective work! 

I hate SMD stuff--not only because it is incredibly frustrating to solder with a conventional iron, but because figuring out what some of the components are is very difficult.

[Xious]

If you're going to do SMD work, you really should consider buying a basic reflow station. These are very affordable today, and make SMD repairs (or construction) very simple.