Electronics > Repair

Need help identifying Mosfet

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eurgenca:
https://si.farnell.com/epcos/nb-59s-09s-0/ultrasonic-nebulizer-1-6-1-72mhz/dp/3490715

Vovk_Z:
Isn't it a some kind of a thyristor?  ???

jasburg:
I am not entirely sure what exactly it is since there is no data available anywhere..

I now ordered a replacement from aliexpress according to which it is TO-3P Power Transistor hoping that it has the same specs: https://www.aliexpress.com/item/4000874311455.html?spm=a2g0o.order_list.order_list_main.5.21ef1802KxQR0f

I'll send an update once I have tested the board with the new component

Jwillis:

--- Quote from: Vovk_Z on November 22, 2023, 10:12:42 am ---Isn't it a some kind of a thyristor?  ???

--- End quote ---


--- Quote from: jasburg on November 22, 2023, 11:01:52 am ---I am not entirely sure what exactly it is since there is no data available anywhere..


--- End quote ---

Based on a circuit diagram that closely resembles the TDK nebulizer board, I would reckon that it's a NPN BJT. The circuit show here shows a BUX40A. But that's in a TO3 package and not a TO3P.
I'm curious to know what it is really. 

altair:
Changed the simulation file a little.

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