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Ceramic caps from China

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rstofer:
Here is a page from DigiKey - note that one category of tolerance is 0,+100%

https://www.digikey.com/products/en/capacitors/ceramic-capacitors/60

It could be that all of your capacitors are within that tolerance.  The question is: what was the specified tolerance?

The assortment only costs $1.40 USD so I wouldn't have high expectations.

wraper:

--- Quote from: rstofer on August 18, 2018, 07:33:45 pm ---Here is a page from DigiKey - note that one category of tolerance is 0,+100%

https://www.digikey.com/products/en/capacitors/ceramic-capacitors/60

It could be that all of your capacitors are within that tolerance.  The question is: what was the specified tolerance?

The assortment only costs $1.40 USD so I wouldn't have high expectations.

--- End quote ---
I don't think it's possible to get 1-2n low voltage capacitors with super unstable Y5V, Z5U (type 3) ceramic. But it's quiet easy to check. Just hold a capacitor with fingers while measuring and capacitance should go down a lot due to heat transfer from fingers. Or heat some other way.

mzzj:

--- Quote from: wraper on August 18, 2018, 08:02:57 pm ---
I don't think it's possible to get 1-2n low voltage capacitors with super unstable Y5V, Z5U (type 3) ceramic. But it's quiet easy to check. Just hold a capacitor with fingers while measuring and capacitance should go down a lot due to heat transfer from fingers. Or heat some other way.

--- End quote ---
Just hold my beer:  ;D https://www.digikey.com/products/en/capacitors/ceramic-capacitors/60?k=&pkeyword=&pv14=20&pv14=32&FV=440003%2C44016e%2C44016f%2C440170%2C4401a2%2C440037%2C440006%2C440044%2C440045%2C440007%2C440055%2Cmu1000pF%7C2049%2Cffe0003c%2C380002%2C380014%2C380020&quantity=0&ColumnSort=0&page=1&pageSize=25

wraper:

--- Quote from: mzzj on August 18, 2018, 08:10:57 pm ---
--- Quote from: wraper on August 18, 2018, 08:02:57 pm ---
I don't think it's possible to get 1-2n low voltage capacitors with super unstable Y5V, Z5U (type 3) ceramic. But it's quiet easy to check. Just hold a capacitor with fingers while measuring and capacitance should go down a lot due to heat transfer from fingers. Or heat some other way.

--- End quote ---
Just hold my beer:

--- End quote ---
Only one part number in stock and that junk costs $ 0.30  :o, LOL. +-20%, though. I wonder who buys that junk at such price.

bd139:
Just a heads up on shitty ceramics. A few of the C0G's and X7R's I got from even "multicomp" brands were bags of lies. A bag of MLCC's I bought from China were 50% faulty.

I only buy Vishay / Murata / Kemet stuff from main line distributors now. Costs a lot more but worth it.

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