This is a close shot


There are three parts on the PCB where this component is located and this is the shot of it

And this is another shot from the back of Heatsink

And 2 out of 3 of the mentioned components are bulged and I took a picture from side and this is the shot (visible from left to right)

And the PCB is for an electrosurgical device and I can't post the whole PCB because of company policy but I want to know what type of component are these since I couldn't find any info about them on Vishay

 

What is the identification on the three 8 pin ICs near those vishay parts?

 

What is the identification on the three 8 pin ICs near those vishay parts?

 

Hi AV,
The PCB is Coded with T407 near the Vishay, I would say it is a transformer.
E


Update: Vishay T724
https://www.vishay.com/docs/49259/emi_rfi.pdf

 

Hi AV,
The PCB is Coded with T407 near the Vishay, I would say it is a transformer.
E


Update: Vishay T724
https://www.vishay.com/docs/49259/emi_rfi.pdf

I kind of knew it's a transformer but do you know any way to test it because 2 of them are swollen if you look at the picture I've sent in the original post and can that be a sign of its fault ?

 

Hi,
in fact, they look diferently -swollen. Check , say a "good" one with a multimeter in resistance mode and compare with those two swollen. Check all windings