Replace MOSFET AO4433 With FDS6679

Look up the specs. and compare them, If they equal or exceed your requirements it will work.

 

Are the packages the same or very similar?

 

Do you even know what that statement means? This is a direct quote from a response to the same question here that you also cross-posted to Electronics Stack Exchange.

We here at Electronics Point are now waiting with bated breath for your next post on www.edaboard.com, where you stated that you are going to go ahead and try replacing the AO4433 mosfets with two FDS6679 MOSFETs salvaged from your other motherboard and report back the results there.

You apparantly also liked Dodgydave's unsubstantiated opinion that the FDS6679 has a "better spec" as he responded to your query on the All About Circuits forum here.

Are you not aware that it is considered poor form to post the same question on multiple forum sites simultaneously? Why are you wasting our time here on Electronics Point?

 

Well, hopefully you have some interest in becoming a DIY electronics kind of person. That is what this forum is for. Read the "About Us" statement at the bottom of every page: Electronics Point is a community for members to discuss, advise and debate electronics related topics. It's really hard to participate in a meaningful manner if you don't know anything about electronics. We do welcome newbies willing to learn, and there are some resources available here that could help, but this is not a teaching forum, per se, it is a discussion forum. Anyhoo... welcome to Electronics Point! Please let us know how the parts substitution turns out.

We are not a problem-solving service, although members here help other members who show an effort to help themselves. We get a lot of drive-by posters just seeking quick answers, mostly "monkey see, monkey do" DIY types. Some of those folks will receive help if the answers are simple and don't require a lot of research, or if the poster can be directed to an online reference that will help them solve their problem. Your situation is NOT like that. You ask for expert opinion to select between two candidate devices to be installed on a complicated piece of electronics. You offer nothing in return, not even a description of possible causes for the failure of the original part. Then, if you replace the component with a substitute and it fails, what are you going to do?