Average lifespan of a polymer capacitor?
Hi, I was just curious if the brand of solid capacitors mattered as much as it did for electrolytic capacitors and if solid caps last a long time in general if they're used in things like motherboards and graphics cards.
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Re: Average lifespan of a polymer capacitor?
Depends which...
There are different kinds of polymers... If your thinking about Ultra-Low ESR polymers, there are two varieties, both of which should last well over several thousand hours, one more significantly longer than the other. -
Re: Average lifespan of a polymer capacitor?
That's not very comforting. There's 8765 hours in a year so it sounds like if you leave it running, you should expect it to fail in about six months. I'd really expect 50,000 hour minimum for a consumer product. Maybe even 100,000 hours.should last well over several thousand hoursComment
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Re: Average lifespan of a polymer capacitor?
remember that the rating is at max rated ripple and temp.
and they dont just die at the end they just go out of spec.
only way a pc runs at 105c is if its on fire.or the room its in is.
and something else will give up before the polys.Comment
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Re: Average lifespan of a polymer capacitor?
the brand of any cap always matters!I was just curious if the brand of solid capacitors mattered
In solid caps, stick with Rubycon, Panasonic, Nippon Chemi-Con, Fujitsu, and Nichicon__________________
the BIG 4
~~~ the top tier of low-ESR electrolytic capacitors ~~~
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Re: Average lifespan of a polymer capacitor?
The (reliable and proven specs) for a cap matter more than anything. Just going with a brand can leave you paying more and getting less if you don't know what you are buying. Solid Polymers tend to last longer than electrolytic due to design and being the next generation per say.
Any cap misused or abused will fail, but for a general standard (used correctly in the circuit) Polys will last longer than Electrolytic only because they are designed to do so.Last edited by brethin; 09-30-2013, 08:06 PM.Comment
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Re: Average lifespan of a polymer capacitor?
Sorry pardner, but that's as silly as saying what brand of car you buy has no effect on reliability!
but in reality, the brand of car and capacitor you buy has everything to do with reliability and durability!
There are Lexus's, Hondas, Subarus, Acuras, Toyotas and Infinitis at one extreme if you like to never see your mechanic, and Dodge, Ford, Land Rover, Jaguar and Chrysler's for you folks who like to have your car fixed on a regular basis.
In the capacitor world, pretty much the same story, just a different set of Japanese names at the top! - and as far "paying more"? - I don't think that 10 cents for the finest low-ESR 10uF 50V cap made is gonna break me, ya see, I've got that kinda cash!
Last edited by theOracle; 10-01-2013, 12:01 AM.__________________
the BIG 4
~~~ the top tier of low-ESR electrolytic capacitors ~~~
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Re: Average lifespan of a polymer capacitor?
i think this is half on topic lol, how long will a motherboard with Taiwanese polys probably last me?Sorry pardner, but that's as silly as saying what brand of car you buy has no effect on reliability!
but in reality, the brand of car and capacitor you buy has everything to do with reliability and durability!
There are Lexus's, Hondas, Subarus, Acuras, Toyotas and Infinitis at one extreme if you like to never see your mechanic, and Dodge, Ford, Land Rover, Jaguar and Chrysler's for you folks who like to have your car fixed on a regular basis.
In the capacitor world, pretty much the same story, just a different set of Japanese names at the top! - and as far "paying more"? - I don't think that 10 cents for the finest low-ESR 10uF 50V cap made is gonna break me, ya see, I've got that kinda cash!Comment
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__________________
the BIG 4
~~~ the top tier of low-ESR electrolytic capacitors ~~~
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Re: Average lifespan of a polymer capacitor?
Lelon?
( by marketing and sales volume only, not necessarily quality)Comment
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Re: Average lifespan of a polymer capacitor?
I'd say Samxon minus their GF series.
EDIT: That is if we're talking Chinese capacitors, and if not them then Aishi. Taiwan would be Taicon, probably.Last edited by Wester547; 10-02-2013, 09:48 PM.Comment
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Re: Average lifespan of a polymer capacitor?
I thought Samxon was based in china? I guess I would say TaiconComment
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Re: Average lifespan of a polymer capacitor?
I only use Japanese and Korean capacitors.
favorite Korean brand is Samyoung
some other great Japanese electrolytic brands not mentioned in my previous posts are Toshin Kogyo, ELNA, and HitachiLast edited by theOracle; 10-03-2013, 02:18 AM.__________________
the BIG 4
~~~ the top tier of low-ESR electrolytic capacitors ~~~
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Re: Average lifespan of a polymer capacitor?
I wouldn't consider TK great. Seen a lot of them fail, especially on motherboardsComment
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Title:
Capacitor detached from PCB – RTX 2070 Super Founders Edition
Description:
During maintenance on an RTX 2070 SUPER Founders Edition, I found a capacitor lying on my desk after reassembly.
I did not notice it detaching, so I am unsure of its original location on the PCB.
Procedure performed:
- Removed backplate
- Cleaned heatsink and PCB with isopropyl alcohol + soft ESD brush
- Reapplied thermal compound
- Reassembled card
Observed behavior after reassembly:
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