Hey guys,have you ever repaired an esc,by replacing its fets?,if you did could you please explain it to me,and where do i get the fets which i need?

I have replaced FETs but it's tough to find....I got from ali express.

Did your esc work?

Yes it worked .... also I replaced 20 AMP esc with 30 amp capable FETs.  

This you can do only once you verify the specs through datasheets.

Ok,how do i get to know the bad ones?

here is a video....

For me i replaced all since i was putting 30Amp FETs.

regds
Saurabh

wow that is so much to help,thanks alot,you should probably show this to everyone,and i was supposed watch it yesterday,but i didnt,because i thought was just another boring video.That guy is lifesaver,i have like 8 burnt escs,and now i know what to do with them.And the final question is,i dont have a multimeter,but now iam going to get one,probably a cheap one,and i need to know one thing,can i get the same beep sound for a cheap Rs300 digital multimeter?,i know it is a dumbest question anyone could ever ask,but really need to know.

Continuity checker is the basic'est  feature of a multimeter.

Still check before buying

You can also make a simple continuity tester with a buzzer and battery

How?

Here's the circuit. Use a led or buzzer.

i already made one by connecting a 9v buzzer and an led in parallel,with a switch,and i think its not working.So iam thinking of buying a multimeter.I have 3pin mosfets in most of my escs,so iam going all the fets in one of them and see if that works.Anyways thanks for your help!

Which battery did you  use?

for good spec P/N mosfets try inkocean or hacktronics. I'm right now repairing my burnt B6 charger (reverse connection of power   )

i found this video very simple and informative for checking Mosfets.



sahil

http://www.inkocean.in/catalogsearch/result/?cat=0&q=sop-8++mosfet

https://hacktronics.co.in/module/wtblocksearch/catesearch?fc=module&module=wtblocksearch&controller=catesearch&orderby=position&orderway=desc&search_category=all&search_query=P+mosfet&submit_search=

some parameters to look for.

P-Mosfet Vds -v ?, Id -A ? Rds on ohms ? and Vgs 2.5 or 4.5 or 10v etc should check the graph.
N-Mosfet Vds +v?, Id +A? Rds on ohms? and Vgs 2.5v or 4.5v or 10v etc.

and physical shape of the fet (package) like SOIC 8pin or SOP 8 etc.

thanks!