Capacitor Color Code

[Spectre]

Can someone throw me a bone for the thread at badcaps that has the capacitor color code for manufacturers?

[jonnyGURU]

Blue!!!! Blue!!!!

[Spectre]

Blue!!!! Blue!!!!

Funny..

[GalvanizedYankee]

I've never seen a manufacturer's color code posted. Might be there somewhere but I've never seen it.
Register and give Galvanized the referral(please) and ask. willawake, Topcat, kc8, Big Pope, davmax, gonzo, Per Hasson, Yanz are all very sharp and helpful. You could look through the bad / good caps pic threads and note each type but that won't really work that well because the lower capacitance Teapos won't be green with a gold strip like the ones we see on a PSU's secondary. This is true of most brands I've seen.

Some links I'll throw at you that *might* be useful.
http://xtronics.com/reference/esr.htm
http://www.uoguelph.ca/~antoon/gadgets/caps/caps.html
http://www.kpsec.freeuk.com/components/capac.htm
http://my.execpc.com/~endlr/index.html

Wayyy off topic but here is a killer Electrochemistry Encyclopedia / Dictionary
http://electrochem.cwru.edu/ed/encycl/index.html

[Spectre]

I've never seen a manufacturer's color code posted. Might be there somewhere but I've never seen it.
Register and give Galvanized the referral(please) and ask. willawake, Topcat, kc8, Big Pope, davmax, gonzo, Per Hasson, Yanz are all very sharp and helpful. You could look through the bad / good caps pic threads and note each type but that won't really work that well because the lower capacitance Teapos won't be green with a gold strip like the ones we see on a PSU's secondary. This is true of most brands I've seen.

Some links I'll throw at you that *might* be useful.
http://xtronics.com/reference/esr.htm
http://www.uoguelph.ca/~antoon/gadgets/caps/caps.html
http://www.kpsec.freeuk.com/components/capac.htm
http://my.execpc.com/~endlr/index.html

Wayyy off topic but here is a killer Electrochemistry Encyclopedia / Dictionary
http://electrochem.cwru.edu/ed/encycl/index.html

Damn, I thought it was bad caps I saw a chart of them at (now i wonder where the hell it was)...and I am already registered...have been for a while just couldn't find what Iwas looking for ;)

[jonnyGURU]

http://www.pmel.org/Handbook/HBpage26.htm

[Kab]

I've also seen them somewhere Spectre but color codes don't reflect manufacturer (although there can be mfg print), they reflect capacitative values.

A fella on xtremesystems (Hipro) had some caps a while back that were 100000uF/75V rated :eek:

Here's the closest I could find to understanding them in a simple way and without muddling resistor values up which many of them seem to do: How to read capacitors (http://xtronics.com/kits/ccode.htm) (less math :p)

[GalvanizedYankee]

Further: For our purposes the imprint struck on the aluminum vent cap is the first indicator of brand. It can be a tri-star, a tri-star with little dashes between the legs, an X or a K.

[willawake]

For the electrolytics it is easiest just to read the info and brand off the caps, in rare cases it can be difficult to find the manufacturer but if it is they are probably trash. Reading them by colour will probably just confuse as there are a lot which are the same colours. Same thing with the vents although the vents can be useful to eliminate some brands when someone is not giving very complete info.

there are some smt silver ones which are occasionally not possible to identify, just read the values off them. then with LCD panels some ceramic ones (usually blue discs with two leads) can partially burn and there it will be necessary to use the codes to find out their values.

i dont think it is so necessary to know how to identify all the brands, the most important thing is to identify the voltage and capacitance uf and then replace with the best low esr caps you can obtain.

[Bbq]

Question: Did you ever find out the primary caps in the Sunbeam Nuuo? I have one here and I'm wanting to put it in, but am I worrying too much about Fuhjyyu and unnamed brand caps on the primary / secondary?

[willawake]

primary caps rarely fail. the secondary are what to worry about but also the cooling and most of all the circuit design that it does not stress the caps. still you just have to see what happens. even the crappy brands can have a reasonably long service in a psu. except if its an antec :D

[Kab]

OR Enermax... :p

I've had many PSU's with Fuhjyyu caps and they ran perfectly for about 3 years plus 6 hours/day usage. Just need decent cooling and good air flow running through the internals and pushed in the right direction, out. I don't recall at all but maybe its the sealing on them thats not as tight because shell-life depletes by known factors with every 10C rise which'll make the average cap life 3 years, so even being at the lower end they should survive.. but since they're not hermetically sealed, the electrolyte probably evaporates quicker than expected causing increased ESR, which causes buildup of heat more than expected or tolerated and the safety seal on filter caps just pops... :confused:
What you don't need to create is negative pressures inside the system case with a massive peripheral fan which'll suck air into it and make life difficult to cool and drag air in through the PSU. I made a mistake a while back seeing Fuhjjyu primary caps and replacing them with ELNA ones with a higher temperature tolerance, capacitance and voltage rating and high ripple; which was a useless move in the end. :mad: They would've done just fine but the paranoia got to me being in industry back then, as a preventative measure, in industries they replace filter caps every 3 years at the very least.

[willawake]

imho cooling is not everything. the design can stress the caps.

[GalvanizedYankee]

For those that don't know. willawake is THE go to guy over at badcaps.net for most any general computer hardware repair at the componet level. He is sharp and his overall knowledge considerable. *tips hat to will*
What he offers is not to be discounted. ;)

[Kab]

Yes will. Thanks for the FAQ there, and the badcap list. I've pointed to it many times and you're right about colling not being everything, undoubtedly ;)