I would like to ask, CEPF630, what can be substitution ah? ? Jia, a thank you.

I would like to ask, CEPF630, what can be substitution ah?? Jia, a thank you.
I am a non-brand-name in the display to see, I doubt that there are no pieces of the problem, file diodes measured, are 1, Only one, 0.542.

This is the role of silicon it is controlled by the power field effect, also known as market power With effect tube! Basically can not be replaced!