1. Home
  2. Electronics Repair
  3. Identity a SOT-23 transistor marked MO5 or M05

Identity a SOT-23 transistor marked MO5 or M05

I'm fixing a laptop and am trying to identify a transistor which I believe may be popped. Well I assume that's what it is. It has all three legs connected.

It is SOT-23 and marked MO5 or could be M05 (letter Oh or digit zero).

There are a couple of others onboard and I believe it's part of the power supply.

Any ideas ?

Thanks,

Jon

Reply to
Jonathan Schneider
Loading thread data ...

They generally use code numbers, not part of the actual number. There are a couple databses on line like this one to help identify SMD semis.

formatting link 

--
http://improve-usenet.org/index.html

aioe.org, Goggle Groups, and Web TV users must request to be white
listed, or I will not see your messages.

If you have broadband, your ISP may have a NNTP news server included in
your account: http://www.usenettools.net/ISP.htm


There are two kinds of people on this earth:
The crazy, and the insane.
The first sign of insanity is denying that you\'re crazy.
Reply to
Michael A. Terrell

Are manufacturer's allowed to put whatever code they like on devices ? So is it possible to have 2 functionally different devices (on same package?) with the same code ?

-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

formatting link

Reply to
N_Cook

Did you look at the link? It happens, quite often. OEMs don't check with each other to see if someone else is using the same code. They don't care, because it is an internal product ID for their use, so people loading pick & place machines can look at the marking and make sure they have the right part. Its not THEIR problem if you buy parts from someone else using the same code.

You have to have an idea what the part does, then look for parts using that code that would do the job.

--
http://improve-usenet.org/index.html

aioe.org, Goggle Groups, and Web TV users must request to be white
listed, or I will not see your messages.

If you have broadband, your ISP may have a NNTP news server included in
your account: http://www.usenettools.net/ISP.htm


There are two kinds of people on this earth:
The crazy, and the insane.
The first sign of insanity is denying that you\'re crazy.
Reply to
Michael A. Terrell

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.