10 amp 300v diodes

[awyatt2]

anyone have a source for the 10 amp 300 volt diodes Samsung uses in their power supplies? they are to220 case isolated tab common cathode and common anode. I need one of each and their numbers cross to nothing. I have repaired this set twice using common switching diodes, they just don't last long. they go in a pn50a550.

[tom66]

Re: 10 amp 300v diodes

What's the part #?

[awyatt2]

Re: 10 amp 300v diodes

part numbers are fcu10uc30 and fru10uc30. one is common anode other common cathode. I have the set running again but its only a matter of months

[selldoor]

Re: 10 amp 300v diodes

I believe Tom advised in your last post on theis set that Digikey have some or at least one
http://www.digikey.com/product-detai...WGI-ND/1147822

Did you check that out?

[Ltank]

Re: 10 amp 300v diodes

Mouser has ON Semiconductor Ultrafast 600V 10Amp diodes that would work. If the 300v are always failing up the voltage rating

http://www.mouser.com/ProductDetail/...kJxUsojjzf4%3d

[Ltank]

Re: 10 amp 300v diodes

Sorry I was thinking single ened not dual diodes.

[awyatt2]

Re: 10 amp 300v diodes

selldoor, yes I did and I bought the one type 10 of them. the other one fru10uc30 I cant find anything to replace it other than taking 2 singles and butting them with a jumper. and its not a voltage problem really its more heat related. just no where to get a fan close enough to the heatsink rail to do any good.

[flocko]

Re: 10 amp 300v diodes

Try these FFPF20UP60DN and RFU20 TM5S the first one i have used for Samsung Powerboard and Sus board repairs the second are used on a lot of Panisonic/ Samsung/LG boards hope this is of some use Flocko

[selldoor]

Re: 10 amp 300v diodes

Try these FFPF20UP60DN and RFU20 TM5S the first one i have used for Samsung Powerboard and Sus board repairs the second are used on a lot of Panisonic/ Samsung/LG boards hope this is of some use Flocko

Those both appear to be common CATHODE types the one he is struggling to find is common ANODE type

[awyatt2]

Re: 10 amp 300v diodes

thanks selldoor, the only place I found is a china source which is probally not worth trying. guess I will continue with the fast switching diode, this time I mad a mount from brass where I could at least heatsink these. tha common anode I have 8 more of but when the common cathode goes it takes out one side of the common anode. I have repaired it twice now. Samsung dosent even have them and when they did they were 27.00 us a pop.

[selldoor]

Re: 10 amp 300v diodes

I thought you said the other way round ? you have a supply of common CATHODE
from digikey?

[SteveNielsen]

Re: 10 amp 300v diodes

I'm confused. The diode tabs were not attached to a heatsink?

[awyatt2]

Re: 10 amp 300v diodes

yes, I have it backwards, I got distracted by my wife.
steve the plain diodes I have been using to make the dual from have no tab the originals do. I made what I have by back to back switching diodes. common anodes I have I need the common cathodes. with the homemade heatsink these may last a bit longer. thanks for trying to help .

[selldoor]

Re: 10 amp 300v diodes

common anodes I have I need the common cathodes. .

Still dont think you have got that right? common cathode ones are at digikey?

[tonydix]

Re: 10 amp 300v diodes

did you ever source these two diodes ?