I bought 1KG of random parts from China. Was it worth it?
Uh oh, I’ve been shopping from China again! This time I got two lucky bags: 500 grams of random capacitors and 500 grams of random electronic parts from a seller on AliExpress. What did I get? Was it worth it? The answer won’t surprise you.
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Umm, did you try flipping the capacitors? Maybe half of those are where you put in the polarity incorectly?
the solar cells and motors seem kind of worth the first bag for some projects, but not much else
Perhaps you could test a couple of those failed capacitors with a scope and conduct a >100kHz square wave ESR test to see if they indeed exhibit a high ESR drop in their waveform when switching the square wave.
Great analysis. Well done
The time you spent to sort capacitors you would have paid for Japanese capacitors.
The Western mindset is disgusting, all of your iPhone GPU chipset, tech things ,drones are made in China
To me 999999999999999999999x good
How i can bought it
I NEED this!!!!!!!!!!!!!!
These capacitors aren’t useful for anything that’s supposed to work for any serious time period. Only for prototypes, testing and experiments. In my experience they often fail after 2-5 years of use. For repairs or making devices quality japanese capacitors should be used. The parts seem cool tho.
Ok but you need to then go through them all to check they work or are the value they say they are not worth the time they even try to pass of second hand parts with short leads and solder on them
Hello please get back to my comment when you can! I have some questions about this
Well, if you’re a technician or hobbyist you’ll eventually use them. I’d use other methods to test the capacitors other than the AliExpress device
Outsourcing their ewaste, that they probably got from the west in the first place, and YOU pay for it.
genius marketing
Now it’s your countries responsibility to dispose of the e waste, and they lost money in the process not gained, brilliant!
from your 1 kg stuff all parts have errors , you cant see it with your toy ,trust me , all parts are checked from million doller high speed automation maschines sorry for my bad englisch , 1kg waste
Not to mention the joy of sorting through all those caps, really streamlines everything
it’s more of a mystery box experience that’s funish i guess? It’s definitely not practical
Gambling for hobby electronics people.
were thy "new" *cough* or parts ripped out of things and cleaned up?
the biggest downside to Ali is really the shipping, it takes way too long, it’s better now but it’s still not great
Can you make a tutorial series
Excuse my bad English
Thanks. I almost bought them
Thanks for letting me know this Types of offers a available online…… And thanks for sharing your thoughts 🙏
I will keep this in mind next time I have eWaste, or sweep the floor in my lab. I’d even sell it for $ USD 10 per kilo.. 🙂
🙂
1:12: Are these adapters?
as an electronic component distributor, i’m curious about people prefer buying those items from online shop or distributors? maybe prefer online platform like amazon and aliexpress bcz more convenient？
So like if you wanted to make a toy gun powered by vaporized capacitors then I would say this is an effective thing to buy for it.
electolityc capacitors are normally +- 20% … ???
I bought this shit and thankfully i got rare shit
good for bench testing not for actual final test
Chinese businessmen really know what they’re doing if they can sell 1Kg of E-waste floor sweepings for $15
Hi I have audio caps in the smaller packages 5mm and geniune from mouser ELNA Silmic2, the esr is approx 1.6-2.5R 2:25
the idea of these is so funny like just random crap in a bag it trully condenses the ali express experience
We had a lot of this in UK back in the 1950s/60s and I used to buy these. It can be fun sorting through the bits but the reality is that it’s only a good buy when you can use all the parts. It is much better to buy just what you need for a particular project and leave these "bargains" well alone! Best wishes!
If you know what you’re doing it might be a great deal. Mica, polystyrene, ceramic capacitors are be pretty stable. If you find a handful of those capacitors then yes you got a good deal. Relays are $5 each. For the experimenter it’s probably a small gold mine!
We are a global distributor of electronic components since 2002 with our own lab for QA! 😀
these are probably good for like art projects or crafts
I wonder how and why they sell these. If they’re rejects they buy from factories then this is a horrible deal, but since most of them work i’m guessing theyre more like things dropped in a production line that weren’t sorted back or the ends of pick and place rolls that weren’t fused
buying old electrolytics is such a bad idea.
You can not measure caps with that gadget and compare them to the datasheet because the datasheets give capacitance for 100/120Hz and tan d, that is the dissipation factor for the same frequency. Many datasheets give the impedance |Z| for 100 kHz. They do not state the ESR. You probably used one of the random lists.
The answer to this is no. If its not sorted specifically, no. My time is worth so much.
you get what you pay for lol
I wonder if you’re applying the judgement on the ESR right because I see some caps of a brand in your "bad" pile that I have come to trust to compete on quality with the best known brands. ESR is highly dependent, not only on series, but also on capacity and voltage ratings. Applying a blanket 1 Ohm limit is therefore just wrong.