Best Capacitors Database: Based on REAL Testing Data!
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- เผยแพร่เมื่อ 7 เม.ย. 2024
- Article: hwbusters.com/best_picks/the-...
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Teapo has been regarded as one of the better non-Japanese capacitor brands for a long time. It's nice to know they haven't stopped improving.
Do u ever sleep? Now, that's what I call some serious testing. :-)
This is awesome, Aris! It's so refreshing to see someone actually testing capacitors. :)
Thanks for all the hard work!
Fantastic video Alex!
I learned a lot about competitors and how important they are!
Definitely new breakthroughs are on the horizon!❤
This is gonna be very useful for the ongoing TecLab's PSU tests series. Greetings from Brazil.
Busting caps is serious business
Great video.
I wonder if in the website, could you edit and add some paragraphs regarding the capacitor's brands, like which one supposedly comes from where?
I think the general public have no idea which brands are supposed to be japanese caps and which ones are not since all the marketing tell is whether the PSU has a japanese cap or not. I also heard some saying that even japanese caps are not always produced there, maybe you could also shed a light on this as well.
That said, I felt like this finding has been really good at alleviating myths and misconceptions regarding the actual best capacitor. Hopefully other friends in media could also spread your findings to educate the general public.
there is really no Japanese cap concept anymore, since most are made in China.
@@HardwareBusters Not really true, as the Jap. brands still have them made (in China, and elsewhere) to their higher specs with their guarded electrolyte formulas. Jap cap brands still reign, though it matters less when talking solid/polymer caps since their performance and lifespan from any major brand, when a suitable cap line is chosen for the app, tends to be more than needed within the viable life of the product.
Great, thank you !!!
Only measuring and comparing capacitance doesn't truly define the major characteristics of a capacitor. ESR & leakage current are on of the most important characteristics in defining how much of a good quality and reliable a capacitor really is!
You will find a bulged capacitor showing the correct capacitance even if its clear that it's failing, but will show worst ESR values.
These two testings (ESR & Leakage current) also going to give us greater understanding for how long a PSU will maintain its voltage ripple performance as well. So will highly recommend adding these testings in your test suite.
ESR and Leakage are affected by the cap's aging, something that I cannot do in our lab. Prolonged testing under high temperatures to age the caps faster. Electricity here in Cyprus is more expensive than gold!
@@HardwareBusters Yes I agree prolonged test is very challenging. I once did a test for Capxon branded capacitors and powered the PSU from the generator that had pretty bad THD, ran it for 8 hours a day for over 6 months at an ambient temperature of around 30C.
Later I compared the results with a brand new PSU (of the same brand and capacity as the old one) and found no significant difference in ESR values between the brand new un-used PSU capacitors and the old DUT capacitors.
I guess you can do the same experiment by powering the PSU with slightly bad AC power, this will mimic harsh conditions and you will only be needing to run this test for 3-4 months (~6-8 hours a day)
@@HardwareBusters ESR is an important factor right out of the package, brand new! The brand new ESR is far more important than peak voltage or deviation from spec'd capacitance in the computer PSU circuits they're used in.
Νόμιζα, I thought subtitles are enabled by default ! But I realized that are hard core in the video when I tried to disabled them but instead of that I saw double subtitles ! 😁
Waiting on your Arctic P14 Max video before I commit to buying them. Hoping that will drop next or very soon.
into this week, in the site first :)
👍🏆
How does the Teapo compare to the "premium" caps when it comes to accuracy(?) in specified use?
I mean its (probably) no problem making a cap that can withstand overvoltage, but then perform poorly in its actual use case within the given specifications.
Accuracy you mean capacitance. There is also the corresponding measurement in my graphs.
Capacitance accuracy is largely irrelevant in their use in SMPS filtering. I mean sure, you don't want something off by 50% but 10% or so? Not a significant difference.
how would this methodology catch say a 48v cap masquerading as a 16v cap, that was labeled as 16v just to top the charts, physical size aside do you have a way to validate another characteristic of the cap
Then they masquerade a higher quality cap to a lower quality one. I don't see a problem there, do you?
@@HardwareBusters usually there is a tradeoff, maybe the ESR takes a hit with higher voltage caps
@@chadmckean9026 Within the same family, ESR is more a function of can size. That stated, there is little point in masquerading a higher voltage part as a lower one, since it still has to have part numbers with the various capacitance values and come in competitive can sizes. However, using a higher voltage cap at a lower voltage can increase the leakage, but not alarmingly so with modest voltage rating increases. It can also be a way to hit an ESR target without introducing more inrush current now that SMPS often run at higher frequency.
Also, suppose by some magical method, a manufacturer could use a higher rated cap "just to top the charts". If it had an equivalent can size, and was sold at equivalent cost, and "IF" (doubtful) all else were equal (or close enough) such as ESR and lifespan, then what is the issue?
However, the issue is that if you increase the insulator layer to withstand higher voltage, that takes up space in the can, so you will have a lower capacitance value per can size... again all else as equal as possible per family of cap.
In other words, it just doesn't happen. Manufacturers would be at a competitive loss to do this because they'd be offering lower capacitance per size and cost.
Do these results also say something about life expectancy?
No, not at all.
Which PSU manufacturers are reliable to use only the best capacitors? In other words the best PSUs?
hwbusters.com/best_picks/best-atxv3-pcie5-ready-psus-picks-hardware-busters/
@@HardwareBusters Thanks.
Because your video does not have subtitles translated into Brazil.
It doesn't have any subtitles. I am looking now at a way to fix that.
You have to subscribe to be able to see subtitles. And stay subbed. Trust me, bro
@@st0rmrider I am subscribed and I don't have an option for subtitles. Which would be nice because he has such a heavy accent.
@@cryalowicki the sub part was a joke. For the rest I agree. Maybe they can enable automatic translation at some point.
@@st0rmrider It has subtitles now!
The variables you tested are useless and a waste of time. Who cares how far over-voltage a cap can tolerate as long as it's not only a tiny amount? Who cares if the capacitance value is exactly what was specified, if it is not a crucial value like would be needed in a timing circuit, where you would be using much smaller capacitance and non-electrolytic (in most cases) anyway?
How about measuring ESR, and temperature rise (and differentiating between same uF value but in a different can size), but most important to me is lifespan in the expected circuits we assume you would focus on given the computer-centric topics, which is filtering SMPS, primarily the output lower voltage-jside stages.
Elite brand? Just no.
Feel free to run your own tests and share them with us if you believe that mine are worthless. Be my guest!
As for the Elite caps, ok this shows how much you really know about cap brands etc.
@@HardwareBusters It's more basic than that, a fundamental lack of understanding the relevant parameters needed in this SMPS subcircuit use. Electrolytics are a range of values, not precision components, and the major brands do provide ballpark accurate specs on their datasheets.
There is no useful purpose for the tests you did. If you want a higher breakdown voltage, you pick a cap spec'd for it. If you want substantially more capacitance, again you pick a part spec'd for that. Very simple decisions that need no testing.
How about doing something with at least usable data, like pick a host PSU, put the make/model cap in the circuit in place of what was there, and measure ripple on a scope, and at full load, measure cap can temperature? Even then, you can't rule out the shorter lifespan of the 2nd/3rd tier brands.
Very curious to see ChengX performance on secondary side