Need help identifying polymer capacitor on motherboard

[acamc59]

I need to replace a capacitor that says:
FP10K
19Az
271
16

From my Google hunt, i think it's a 270uF 16v 10k hrs capacitor.
Can anyone confirm this?
Not sure was fp means nor 19Az

Also where could i get an EXACT replacement.

If you can't buy that exact one, would this one work? I looked on mouser and the closest one i could find is this one.
https://www.mouser.com/ProductDetail...gbYmA8OQ%3d%3d

[coreAngel]

Re: Need help identifying polymer capacitor on motherboard

I need to replace a capacitor that says:
FP10K
19Az
271
16

From my Google hunt, i think it's a 270uF 16v 10k hrs capacitor.
Can anyone confirm this?
Not sure was fp means nor 19Az

Also where could i get an EXACT replacement.

If you can't buy that exact one, would this one work? I looked on mouser and the closest one i could find is this one.
https://www.mouser.com/ProductDetail...gbYmA8OQ%3d%3d

FP is Fujitsu Polymer Capacitors (FPCAP) which was a popular Polymer cap manufacturer before getting bought out by Nichicon

270 uf 16v is the correct one

can you show a pic of the cap if it is possible? just to be sure

though i would choose that cap you posted https://www.mouser.com/ProductDetail...gbYmA8OQ%3d%3d

[acamc59]

Re: Need help identifying polymer capacitor on motherboard

FP is Fujitsu Polymer Capacitors (FPCAP) which was a popular Polymer cap manufacturer before getting bought out by Nichicon

270 uf 16v is the correct one

can you show a pic of the cap if it is possible? just to be sure

though i would choose that cap you posted https://www.mouser.com/ProductDetail...gbYmA8OQ%3d%3d

So you think the one i picked is a good choice?
Is there esr and ripple current fine for my application?

https://imgur.com/a/7cyJO0X
Here is a picture. They are located above the vrm heatsink. To the right and left of the 8 pin eps cpu power connector.

I'm assuming they filter the 12v input to the board before it hits the vrm?

[coreAngel]

Re: Need help identifying polymer capacitor on motherboard

So you think the one i picked is a good choice?
Is there esr and ripple current fine for my application?

https://imgur.com/a/7cyJO0X
Here is a picture. They are located above the vrm heatsink. To the right and left of the 8 pin eps cpu power connector.

I'm assuming they filter the 12v input to the board before it hits the vrm?

Now this is where it gets interesting ( i didn't know it was a motherboard) your Asus ROG Rampage IV Extreme has custom Nichicon GT (it still says FP using Fujitsu Polymer) Series polymer caps, which i cant seem to find any.

Polymer caps tend to last a very long time(this one says about 10K + hours) why do you need to replace the cap, did you do any testing?

[acamc59]

Re: Need help identifying polymer capacitor on motherboard

Now this is where it gets interesting ( i didn't know it was a motherboard) your Asus ROG Rampage IV Extreme has custom Nichicon GT (it still says FP using Fujitsu Polymer) Series polymer caps, which i cant seem to find any.

Polymer caps tend to last a very long time(this one says about 10K + hours) why do you need to replace the cap, did you do any testing?

The motherboard was hit in shipping at the top of the board which bent over the capacitors and pulling the leads out of the capacitor body.

[coreAngel]

Re: Need help identifying polymer capacitor on motherboard

The motherboard was hit in shipping at the top of the board which bent over the capacitors and pulling the leads out of the capacitor body.

I looked up the motherboard caps on here

https://rog.asus.com/articles/overcl...ampage-boards/

I can't seem to find the caps anywhere

However the closest thing with 5mA ripple current as it said on the page the closest thing i could find is this

https://www.mouser.com/ProductDetail...hwM4CKJLz78%3d



that would be my suggestion unless someone else here, has some other opinion?

[acamc59]

Re: Need help identifying polymer capacitor on motherboard

I looked up the motherboard caps on here

https://rog.asus.com/articles/overcl...ampage-boards/

I can't seem to find the caps anywhere

However the closest thing with 5mA ripple current as it said on the page the closest thing i could find is this

https://www.mouser.com/ProductDetail...hwM4CKJLz78%3d



that would be my suggestion unless someone else here, has some other opinion?

I don't think that I'll be able to fit that one because it's 8mm diameter.

Is there any reason to go with the ones you looked as opposed to the ones i first linked? The specs look the same but I'm not exactly sure what all the specs mean.

Mine I linked: https://www.mouser.com/ProductDetail...gbYmA8OQ%3d%3d

Yours: https://www.mouser.com/ProductDetail...hwM4CKJLz78%3d

[coreAngel]

Re: Need help identifying polymer capacitor on motherboard

I don't think that I'll be able to fit that one because it's 8mm diameter.

Is there any reason to go with the ones you looked as opposed to the ones i first linked? The specs look the same but I'm not exactly sure what all the specs mean.

Mine I linked: https://www.mouser.com/ProductDetail...gbYmA8OQ%3d%3d

Yours: https://www.mouser.com/ProductDetail...hwM4CKJLz78%3d

My mistake i thought the were different though the Ripple Current is almost the same 5.08 mA compared to 5mA so it should work great the one you linked.

[acamc59]

Re: Need help identifying polymer capacitor on motherboard

My mistake i thought the were different though the Ripple Current is almost the same 5.08 mA compared to 5mA so it should work great the one you linked.

Ok I'll get those.

I'm also wondering, in your opinion, are the replacements on mouser considered decent for this type of application?

And do you happen to know what these caps do on this board? Because the board still seems to function properly.

[coreAngel]

Re: Need help identifying polymer capacitor on motherboard

Ok I'll get those.

I'm also wondering, in your opinion, are the replacements on mouser considered decent for this type of application?

And do you happen to know what these caps do on this board? Because the board still seems to function properly.

According to the Asus ROG site:

"Longevity is also a prime directive, so the new capacitors are rated for 10,000 hours of operation at 105ﾟC. Of course, since your system won't regularly reach those temperatures, expect an even longer lifespan"

The caps on the board are custom made and rated 10000 hours, which make no sense since most components would fail before the caps would fail.

The United Chemi-Con replacement is good enough, it is rated 5000 hours at 105C though the lower the temps the longer it lasts, since it is polymer caps they last much longer than electrolytics.

The caps filter the incoming power to the components, such as RAM,VRM's,PCI-E cards etc.

[acamc59]

Re: Need help identifying polymer capacitor on motherboard

According to the Asus ROG site:

"Longevity is also a prime directive, so the new capacitors are rated for 10,000 hours of operation at 105ﾟC. Of course, since your system won't regularly reach those temperatures, expect an even longer lifespan"

The caps on the board are custom made and rated 10000 hours, which make no sense since most components would fail before the caps would fail.

The United Chemi-Con replacement is good enough, it is rated 5000 hours at 105C though the lower the temps the longer it lasts, since it is polymer caps they last much longer than electrolytics.

The caps filter the incoming power to the components, such as RAM,VRM's,PCI-E cards etc.

Sounds like they're critical to proper operation and might damage the stuff connected to the board overtime.

[momaka]

Re: Need help identifying polymer capacitor on motherboard

270 uF and 16V - that's most likely for the CPU high-side buck converter (i.e. CPU VRM high-side). Not critical, but the board could become unstable under load, especially with a high-power CPU, if one of these caps is damaged.

In any case, the whole polymer thing is mostly marketing hype, among other things. I say marketing hype, because most modern motherboards just don't fail from capacitor issues anymore - they fail mainly from chipset problems (i.e. chipset going bad like graphics cards often do). But the other reason why motherboards now use poly caps instead of regular lytics is because the cost of production for polymer caps had finally caught up with that of ultra-low ESR electrolytic caps. Also, the ULESR electrolytics simply could not keep up with the demand or smaller size footprint of polymers - another reason why mobo manufacturers started using them more.