SOT Identification

[dino40]

Good Day All,
Here we go again, I am reverse engineering an old PCB and need help identifying an sot-23 all I have is the laser code on the package which is ASG and the date code. Does anyone have a source for finding out what type of transistor this is? I did a search for the laser code and came up with lots of sites but none were of help.
Thanks for the input Dino

 

[Comcokid]

What kind of circuit. Digital I/O (i.e. switch)? RF circuit?
Analog circuit?

What is the possible function of the device? MOSFET, transistor, dual diode, zener?

Who makes the other semiconductor devices on the board?

Just a little bit of info will help trace down the possibilities.

 

[zappedagain]

Could it be a KTA1504S from Korea Electronics?

http://www.datasheetcatalog.com/datasheets_pdf/K/T/A/1/KTA1504S.shtml

 

[dino40]

Comcokid that's the problem it's in a Digital motor control circuit that's all i know.

 

[OutToLunch]

I can usually find what I'm looking for at this site, but it doesn't look like "ASG" is listed...

http://www.tkb-4u.com/code/smdcode/indexsmdcode.php