NetVista Capacitors - replacements???

[Captain_Jon]

I have a 2 IBM NetVista computers and one has leaking capacitors which are causing constant rebooting issues.

The one with the problem is a NetVista model 23U. I looked at the motherboard and found several to be leaking. The ones leaking are identified as follows, both types are YEC:

- 6.3V ; 1000uf ; LZ 105°C

- 6.3V ; 1500uf ; LZ 105°C

Where do I get capacitors to switch these with?? Does a Radio Shack (now The Source in Canada!) carry these? Can someone point me in the right direction as to where I should look (in the Toronto region) and which capacitors are recommended as replacements...

Thanks

[AK0R]

Re: NetVista Capacitors - replacements???

No, Radio Shack does not supply capacitors that are appropriate for use in a power supply or motherboard.

Here is a link for good manufacturers and types:
https://www.badcaps.net/forum/showthread.php?t=588
(Panasonic FM are even lower ESR than FC, and often cheaper.)

Here is a link for suppliers:
https://www.badcaps.net/forum/showthread.php?t=613

[linuxguru]

Re: NetVista Capacitors - replacements???

YEC are known crap - they have the distinction of bulging and leaking electrolyte even when new in their original packing. I just saw a full pack of YEC yesterday which was reeking of the characteristic ammonia odour of failed caps, and sure enough, there were many bulging caps inside. How this stuff got past IBM's qualification process is a huge mystery.

[kc8adu]

Re: NetVista Capacitors - replacements???

YEC are known crap - they have the distinction of bulging and leaking electrolyte even when new in their original packing. I just saw a full pack of YEC yesterday which was reeking of the characteristic ammonia odour of failed caps, and sure enough, there were many bulging caps inside. How this stuff got past IBM's qualification process is a huge mystery.

a pic would be nice.
btw when satillite tv was c band and dishes were 12' uniden recievers that were made with yec caps had to be totally recapped after 1 year.
had a bunch of cobra 2000 cb's that other techs gave up on.all these tough dogs were open yec caps.

[Captain_Jon]

Re: NetVista Capacitors - replacements???

Thanks for the replies... In hindsight I should have read some of the stickies before posting!!

Now that I read the 2 suggested threads, I am still looking for some help...

It appears that the recommended replacement capacitors are:

- Panasonic FC or FM; and
- Rubycon ZL

So I checked on the two Canadian suppliers from the other thread and found that Newark in One carries none of them whereas Digikey carries only the Panasonic products (that I could find!).

I found the following on Digikey:

Panasonic # EEU-FC0J102 (CAP 1000UF 6.3V ELECT FC RADIAL)
Panasonic # EEU-FC0J152S (CAP 1500UF 6.3V ELECT FC RADIAL)
Panasonic # EEU-FC0J152 (CAP 1500UF 6.3V ELECT FC RADIAL)
Panasonic # EEU-FM0J102 (CAP 1000UF 6.3V ELECT FM RADIAL)

Would these be good replacements for the bad YEC capacitors that I currently have?

- 6.3V ; 1000uf ; LZ 105°C
- 6.3V ; 1500uf ; LZ 105°C

Thanks...

[Captain_Jon]

Re: NetVista Capacitors - replacements???

Anyone??

I am "definitely" not an electronics wizard and as such I really need some advice to make sure I don't install the wrongs ones...

An additional point... I read on another website that the Panasonic caps with the "S" at the end of the product number should definitely be avoided... is this right??

Thanks...

[willawake]

Re: NetVista Capacitors - replacements???

the S are the short and fat. you want the tall and thin

you might as well buy FM series, they are sometimes cheaper and superior to FC, although FC is perfectly fine and what i use

FM 1000 6.3 = P12340-ND 10mm width
FM 1500 6.3 = P12343-ND 10mm width

looking through the catalogue page 966 for FM it is quite interesting

you can have

FM 1200 6.3 = P12342-ND 8mm width
FM 1000 10 = P12354-ND 8mm width

either of those would be better for replacing 8mm 1000s on the board if they are in rows or close together

basically the series FC, FM are ok to replace any cap on motherboards, keep to the same or higher voltage and uf. no prob to replace a 1000 6.3 with a 1000 10v or a 1000 6.3 with a 1200 6.3 etc. digikey also has FC series smt. dont buy those you want radial.

[Captain_Jon]

Re: NetVista Capacitors - replacements???

willawake... Thanks for the reply... that is very helpful.

[Captain_Jon]

Re: NetVista Capacitors - replacements???

Well I ordered the caps and just received them... Due to availability, I ordered the FC series for the 1500uf but the FM series for the 1000uf.

I was about to get down to installing them when I noticed that the FM series caps are bigger in terms of diameter than the YEC caps I am replacing!!

Being a novice at this recapping... I see that the current YEC 1000uf caps are raised on the board and not flush (whereas the 1500's are flush!)... Given that the FM caps are wider can I simply do the same and soder them in with a gap above the board?? The gap is about 1/8"...

[willawake]

Re: NetVista Capacitors - replacements???

should have got these 8mm ones

FM 1200 6.3 = P12342-ND 8mm width
FM 1000 10 = P12354-ND 8mm width

anyway no prob. i recap with 1000uf 10mm all the time. I am assuming that the YEC are 8mm. so what you do is solder some in standing up flush to the board and others you bend the leads and solder them in angled. if you have clearance problems with agp card or pci card etc you can also bend the leads and solder them in lying flat on the board.

dont worry there is no problem with doing that.



example



both boards still providing stable daily office duty.