Can anyone identify this mosfet?

[Willaraz]

I'm trying to fix this Dell 2205 AIO, the screen doesn't come on and I suspect the motherboard isn't supplying 12v to the inverter. Although I may be wrong.
What is TRF with a value of E and apparently the dot means its led free?
I also put a little schematic thing up, I don't know if it's helpful.

I posted this under Laptops, Portable, and Mobile Devices because of the external power brick and the motherboard felt more like a laptop one.

[stingerchamp]

Re: Can anyone identify this mosfet?

It is a load switch mosfet used in video device where sensing signal is required

Google TRF mosfet you will find it at second page
Although it is TRF m p channel



Onsemi.com make these

But they are two types p channel and n channel so check which one you have

P channel conducts drain to source but not backwards


N channel conducts source to drain but not backwards

Three leg mosfet

If you have schematic , first check number on it motherboard starting Q and find it in schematic

[Willaraz]

Re: Can anyone identify this mosfet?

I also found the pdf but didn't understand what was going on, thanks for clearing up for me!

[stingerchamp]

Re: Can anyone identify this mosfet?

If n channel then mosfet conducts when gate valve is higher than source

Vgs high= vg- Vs= 17-19= -2 wrong