Oh FFS, why just because its from China shouldn't you trust it ?
For just $12 take the gamble why don'y you.
It's the low price, not the nationality, that led me to ask.
The thing I don't like about super cheap resistors is that they usually have very thin flimsy leads which are a bit of a pain to work with. Otherwise they work ok, I guess whether to trust them depends on what you plan to do with them. I wouldn't use them to build something critical.
It's the low price, not the nationality, that led me to ask.
OK.
Have another look at the listing and:
Customers who viewed this item also viewedI think you could find even better value for money.
Which did you have in mind? I saw some competitors that looked comparable, but not appreciably cheaper. It may not show the same alternatives every time someone views the listing.
Which did you have in mind? I saw some competitors that looked comparable, but not appreciably cheaper. It may not show the same alternatives every time someone views the listing.
Those with more values in the kit.
While we try to use common values in designs they don't always fit our needs especially for voltage dividers into some particular threshold level.
EG. My TH resistor kit has 96 values.
When buying something this [intrinsically] inexpensive, what's wrong with Digikey and Mouser? At least that way you know the parts are from a reputable source. Just order 25, 50, or 100 of each value as you need them, along with your other project parts. Before long you'll have a junk box tailored to your needs.
I've just never understood the allure of cheap parts on ebay/amazon/aliexpress (assuming it's not something intrinsically expensive, and you're finding a "deal"). It's like the folks who go on about $0.02 Padauk MCUs or whatever. If you live in the US and can afford to buy food, clothing, and shelter, then electronics parts expense is an insignificant fraction of your hobby budget.
I’ve had no trouble with the values of my eBay resistors (I haven’t systematically tested, but the ones I’ve measured at random have all been in spec.), but I wouldn’t buy them again, just because the leads are so aggravatingly thin, as others have said. They’re grudgingly tolerable for soldered projects, but no good at all for breadboarding. And of course the fact that the assortment I bought meets it’s spec is no predictor of whether other ones will.
Given how cheap decent quality ones are on Digi-Key, mouser, etc., I’d just buy an assortment there. (Up to you whether to buy an actual assortment kit or to just order some a la carte. But for what it’s worth, if I had it to do over again, I would splurge on an assortment kit that comes in a proper quality set of drawers. The time it saves over organizing them yourself is worth it.)
(I actually now mostly buy resistors at the local mom-and-pop shop, since if you count and cut them yourself, they even give you the quantity discount on mixed values! If I buy 100 resistors at once, it’s down to something like 5 cents a piece, which I think is fine for mixed-value name-brand product.)
Disadvantage are the thin lead wires, they don't fit nicely in a breadboard .. a bit wonky.
usually have very thin flimsy leads which are a bit of a pain to work with
Yes, very true!
My own Ebay purchase had flimsy but usable leads. A friend bought some from another EBay source, and when I tried to squash the leads flat with 'flat-faced' pliers, the lead 'snipped'. It kept happening. He was laughing a me, but then he got the same result. So, those particular resistors are junk, even if they are accurate.
Since when 1 cent is cheap? You can get transistors in China for 0.3 cents, from big brands (Leshan Radio Company, joint venture with onsemi, onsemi jellybean transistors are also made from the same production line).
Taking advantage of the topic, are these mosfet makers (HUAYI, NIKO Semicon, JESTEK, VBsemi Elec) reliable?
I see them on the LCSC website.
" Should I trust these cheap Chinese resistors?"
This set is far away to be cheap, in fact, is very expensive
Quality components will have a datasheet with the specs. Reputable brands are less likely to lie or omit things, as a proven track record is how they become a reputable brand. That essentially sums up who to trust.
If you brought a random box of resistors from China, that is all you have. They aren't comparable to anything unless you test them thoroughly (which takes time/gear and skill) and you won't easily know the long term performance.
It may not matter if you are just tinkering, but this is why people will tell you to avoid cheap Chinese sourced components, the price difference is not worth the effort in time to correct problems.
Especially if you are you are commercializing a product, now more than ever there is also an environmental cost which should be considered. We want the most reliable to rise to the top not the cheapest. Familiarizing yourself with datasheets is good experience as well.
These remind me of the "$1 packs" that used to be advertised in the pages of electronics magazines like Popular Electronics, Radio Electronics and the like.
As a student living in Mexico in the 1970s, it was very expensive for me to acquire the proper catalog components. Grab packs were the means I could afford to enjoy my hobby. Please note the word: hobby.
So in many instances I purchased a few of those packs. Be prepared to spend some time testing them, though.
I remember purchasing a pack of more than 100 LEDs, but half of them were so dim that were worthless. But the remaining 50 still were a bargain for $1.
Disadvantage are the thin lead wires, they don't fit nicely in a breadboard .. a bit wonky.
Also usually steel, not copper. Sometimes that's a help, as I can use one of my magnetic dishes (for holding screws) to collect all the cutoff ends to keep them from falling into places I wouldn't want a small conductive scrap.
All the ones that came in various component kits I've gotten (those 'Arduino" or "Raspberry Pi" experimenter kits get you lots of interesting parts for cheap) have been fine on values. I have one of those assortment kits of ceramic caps - they don't seem to match their values, at all. A few random ones do, but the majority are way off - not 20%, more like 80% off. I bought a pack of a specific value - 20pF for oscillators - and they are all fine. For my project, I just bought packs of each value needed, cost was no more than the assortment, so no real point in trying to be cheap on these low cost parts, and they've all checked out so far. OK, maybe I paid $0.004 each instead of $0.003 each - I'll gladly pay a tenth of a cent more for ones that have correct values. It's not like I'm buying a million, in which case it would cost me $1000 more. I'm buying like 100 - so it's 10 cents more. I can make up the 10 cents by pulling away a little slower from one stop sign on my way home tonight.
Should I trust these? Resistors for less than 1 cent each (US$).
https://www.amazon.com/gp/product/B07P3MFG5D/
They may be good, but (1) it depends on your application. If you require 1% or below tolerance, It would not touch these (2) why bother buying from unknown source? I would rather pay to know what exactly I am getting.
Quite frankly the smaller wattage resistors with the very thin leads are not very good. If you want reasonable quality 1% resistors consider buying from Element14. Full copper leads are definitely a better way to go. In 50 or 100 quantity the price difference is immaterial.