Hello. I bought new 1000uF 16V electrolytic capacitors and checked them with an electronic components tester. The tester results are ESR 0.30 ohms and 1001uF. And according to the table, the ESRs should be less than 0.30 ohms. Please reply. And what should the ESR deviation be, e.g. +/- 20%...

These are the parameters given in approx. And it can vary significantly, it is difficult to produce a product that will be in such an exact class.

According to the table, they should be 0.15

I don't know where you got this table from, but a 1000uF / 16V capacitor from the RTE series by Zhuhai Leaguer Capacitor Co. Ltd. has 0.09? in the catalog with what tolerance they have specified, ask the manufacturer. In addition, a tester is not the same as a meter, whether the manufacturer gives some parameters, how exactly it measures it, the measurement method or frequency may be different, it also affects the result.

I wentogle ESR table and took the first one. I still watched this movie

I am curious how to measure it, because according to another table ... Link The new 1000uF / 10V capacitor has 0.38Ohm on the meter and the ESR is too high according to the table, it means that although the capacitance is correct, the capacitor should be thrown away ??

If you want to check it properly, read the manufacturer and type of the capacitor, find the datasheet and then compare. If the capacitor being measured was a lowESR capacitor in a high-current converter then it would be useless, if a regular capacitor used in light applications it might be acceptable. The ESR of the capacitor must be compared with how much it should be, a random table from the Internet will not help you with this.

First, charge these capacitors through a 100R resistor to the nominal voltage and leave it for some time, e.g. for a day. then unload and compare the parameters before formatting.

[Solved] ESR & Capacity: New 1000uF 16V Electrolytic Capacitors - ESR Deviation & Electronic Tester Results

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#1 17407247 27 Aug 2018 10:36

mateusz2015_5102 mateusz2015_5102

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Post #1
17407247 27 Aug 2018 10:36

Hello.
I bought new 1000uF 16V electrolytic capacitors and checked them with an electronic components tester. The tester results are ESR 0.30 ohms and 1001uF. And according to the table, the ESRs should be less than 0.30 ohms.
Please reply.

And what should the ESR deviation be, e.g. +/- 20% electrolytic capacitors?

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#2 17407262 27 Aug 2018 10:41

krzysiozak krzysiozak

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Post #2
17407262 27 Aug 2018 10:41

These are the parameters given in approx. And it can vary significantly, it is difficult to produce a product that will be in such an exact class.
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#3 17407267 27 Aug 2018 10:46

bartekjasecki bartekjasecki

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Post #3
17407267 27 Aug 2018 10:46

According to the table, they should be 0.15
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#4 17407426 27 Aug 2018 11:59

jarek_lnx jarek_lnx

Level 43

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Post #4
17407426 27 Aug 2018 11:59

I don't know where you got this table from, but a 1000uF / 16V capacitor from the RTE series by Zhuhai Leaguer Capacitor Co. Ltd. has 0.09? in the catalog with what tolerance they have specified, ask the manufacturer.

In addition, a tester is not the same as a meter, whether the manufacturer gives some parameters, how exactly it measures it, the measurement method or frequency may be different, it also affects the result.
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#5 17407560 27 Aug 2018 13:03

mateusz2015_5102 mateusz2015_5102

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Post #5
17407560 27 Aug 2018 13:03

jarek_lnx wrote:
I don't know where you got this table from, but a 1000uF / 16V capacitor from the RTE series by Zhuhai Leaguer Capacitor Co. Ltd. has 0.09? in the catalog with what tolerance they have specified, ask the manufacturer.

I wentogle "ESR table" and took the first one.
I still watched this movie https://youtu.be/5DBQ-XmIsgY
#6 18161253 10 Sep 2019 16:12

comandos21 comandos21

Level 18

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Post #6
18161253 10 Sep 2019 16:12

I am curious how to measure it, because according to another table ...
Link

The new 1000uF / 10V capacitor has 0.38Ohm on the meter and the ESR is too high according to the table, it means that although the capacitance is correct, the capacitor should be thrown away ??
#7 18161471 10 Sep 2019 18:52

jarek_lnx jarek_lnx

Level 43

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Post #7
18161471 10 Sep 2019 18:52

comandos21 wrote:
The new 1000uF / 10V capacitor has 0.38Ohm on the meter and the ESR is too high according to the table, it means that although the capacitance is correct, the capacitor should be thrown away ??

If you want to check it properly, read the manufacturer and type of the capacitor, find the datasheet and then compare.
If the capacitor being measured was a lowESR capacitor in a high-current converter then it would be useless, if a regular capacitor used in light applications it might be acceptable.

The ESR of the capacitor must be compared with how much it should be, a random table from the Internet will not help you with this.
#8 18161587 10 Sep 2019 19:58

Anonymous Anonymous

Level 1

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Post #8
18161587 10 Sep 2019 19:58

First, charge these capacitors through a 100R resistor to the nominal voltage and leave it for some time, e.g. for a day. then unload and compare the parameters before formatting.
#9 18839480 26 Jul 2020 23:25

mateusz2015_5102 mateusz2015_5102

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Post #9
18839480 26 Jul 2020 23:25

Problem solved.
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Topic summary

The discussion revolves around the performance of new 1000uF 16V electrolytic capacitors, specifically focusing on their Equivalent Series Resistance (ESR) and capacitance measurements. A user reported an ESR of 0.30 ohms and a capacitance of 1001uF, questioning the validity of these results against a reference table indicating an ESR threshold of less than 0.30 ohms. Responses highlighted the variability in capacitor specifications, the importance of consulting manufacturer datasheets for accurate ESR values, and the potential discrepancies in measurement methods between testers and meters. Suggestions included charging the capacitors before testing and considering the application context of the capacitors to determine their usability.
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[Solved] ESR & Capacity: New 1000uF 16V Electrolytic Capacitors - ESR Deviation & Electronic Tester Results

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