W2S SMD SOT-23

[AntonioGuimaraes]

Hello,

I have a component SMD SOT-23 that as an inscription on it - W2S.

I tried looking up the table to see the corresponding component but the ones that came up the caracteristics were not the same.

I need to find the correspondent of this component.

Does anyone have an idea?

[nick_13812]

Hello AntonioGuimaraes,

Are you able to provide an image of the component, the circuit, or any other information in regard to this component?

[Adam7]

Maybe this one?
In any case, we need a photo of your component.

[AntonioGuimaraes]

Yes, here are the photo

Add images

[AntonioGuimaraes]

We checked and it is not that.
Here is a photo of the component

[Adam7]

Unsolder component W2S.
Check with a multimeter, it should probably be PNP.

Report the result.
Component A4W should be 2 Schottky diodes.

[AntonioGuimaraes]

It is not 2 diodes.
with the multimeter it looks like mosfet.

[Adam7]

What element are you talking about?
A4W ???

[Irfan_Koric]

Hi Antonio,

Considering the marking of W2S and the package case of SOT-23, the part is likely BCR189 base part number like Adam7 suggested, as in a data sheet: https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2502/BCR189%20(2005).pdf

Unfortunately we no longer carry this part but we have some similars such as 846-DTA114TETLCT-ND and DTA143TETLCT-ND. You’ll have to review the full specs to verify if it will work for your application.

Hope that helps.

[AntonioGuimaraes]

Oh, sorry no.
I was reffering to W2S that looks like mosfet.
The A4W is working fine. Only looking for W2S

[Adam7]

Make sure 100% that it is a MOSFET transistor!
Unsolder it from the board and measure it.
It does not matter what it is - P- channel or N - channel.
This is very important for the search!

[AntonioGuimaraes]

Hi Adam, i appretiate all tha help you are giving me.
I have one that it is working fine.
Do you know the Huntron Tracker meter? I can send a video that i made measuring the one working for you to see.

[Adam7]

Hi, AntonioGuimaraes!
“Do you know the Huntron Tracker meter?” -No, I never see it.
"I can send a video " - OK, please send video.
The more information, the faster you will get an answer.

[Adam7]

Hi, AntonioGuimaraes,
it wasn’t easy, but I found your chip marked W2S_xx.
This chip is SI2304DS (N-channel TrenchMOS).
How did I do it?
I found this information on the internet:

The datasheet for the SI2304DS,215 microcircuit can be found at the link:https://www.digikey.com/en/products/detail/nexperia-usa-inc/SI2304DS-215/1158305
But there is a problem, the datasheet does not indicate the marking code.
And more information - SI2304DS,215 is Obsolete and no longer manufactured.
This problem can be solved by replacing it with a Si2304BDS chip with the marking (L4*).
The chip is located at the link:
https://www.digikey.com/en/products/detail/vishay-siliconix/si2304bds-t1-ge3/1995511

Why I made such a conclusion about replacing the chip, you can find in the file «Specification Comparison Si2304BDS vs. Si2304DS».

Best Regards,
Adam.
Specification Comparison Si2304BDS vs. Si2304DS.pdf (45,6 КБ)