Electronics > Repair
Need help identifying Mosfet
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lmagalhaes:
Hi there,

I have a nebulizer board from TDK that has a faulty mosfet. I can find similar mosfets online in Aliexpress and sites like that, but fail to get a datasheet. I'd rather get the datasheet and look for a similar mosfet that is available either on Mouser or Digikey or any other distributor. Can you guys help me identify this little mosfet ? I've searched the web and found that this guy is probably made by Sanken Semiconductors, but their datasheets are really incomplete.

Here's a picture of him:



And I'm betting is this one, but I wanted to make sure: https://www.semicon.sanken-ele.co.jp/ctrl/en/product/category/MOSFET/detail/?product=2SK2701A

Any takers?

Best regards,

Luís
abdulbadii:
Device/schematic please ? To help id its property/function..
DavidAlfa:
Here they talk about it:

https://mobile.donanimhaber.com/asagidaki-transistorun-kodunu-bilen-varmi-t01a--81829927
lmagalhaes:
The MOSFET is from a nebulizer from TDK. I have seen replacements online but wanted to get one from a reputable source. Here's a photo of the board:

asis:
Hi,

Are you sure all the components are installed on the PCB?
You have no inductances L1, L2, L3 and the emitter of the transistor (rightmost pin) is not connected anywhere.
You will show the PCB from below.
At the same time, ring the transistor. This is probably n-p-n.
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