need help identifying fried smd component

Thread Starter

elmi

Joined Jun 3, 2010
3
I need help identifying the component shown below.
It's close to the DC power input of a MP3 recorder Zoom H2N.
It got fried when connected to a too high input voltage.
The last two letters look like "AW" to me, the rest is unreadable.
Thanks in advance,
Michael
 

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retched

Joined Dec 5, 2009
5,208
I would get the 'non-exploding' type next time. ;)

It could be an opto. but then again.. It appears the center pin may be connected to GND.
MOSFET..I think your on to something Rifaa.

Hrm...
 

R!f@@

Joined Apr 2, 2009
9,918
I usually am right when it comes to blowing MOSFET's :D..

If he could show me the surrounding I can make it out?
 

Thread Starter

elmi

Joined Jun 3, 2010
3
OK, here comes the bigger picture with the surroundings.
I had hoped the few readable letters on the component are sufficient; I didn't find the code in any of the internet SMD tables.

Thanks in advance.
 

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Thread Starter

elmi

Joined Jun 3, 2010
3
Sorry for not responding so long, I had to travel. Please find the closeup attached.
I think that the black plastic piece on top of the image is glued on top of the IC to isolate two large solder points beneath it from a flat band cable that is on top of it when the device box is closed.
 

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tom66

Joined May 9, 2009
2,595
I'm assuming it's some kind of regulator. Most likely, it's a linear regulator. It can't be a MOSFET, because the reference designator says "IC1".

Looks like pin 1 is grounded.
Looks like pin 2 goes to some control (ON/OFF, SHUTDOWN?)
Looks like pin 3 comes out from a transistor Q3, probably a bipolar or MOSFET, I'm making a guess that it's connected to the emitter or source, so this looks like some kind of control or perhaps it only gets switched on when the power connector is present(?) Can you snap a closer shot of the transistor Q3? It's also possible this is the output, and the transistor controls whether the other components get the regulated voltage or the battery voltage (if it is battery powered).
Looks like pin 4 goes to ground.
Looks like pin 5 is the input.
 
What a blowout! I didn't know BP made electronic components too.

It is a SOT23-5 package -- a 5-pin IC.

Pin 2 looks like connected to ground.

Looks pretty clear that it says _NAW... do you see the "N" there?

Isn't there a website that lists a lot of components by the markings?

Sage
 
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