Electronics > Beginners
Datasheet Database
BTO:
Hi Guys,
I was literally going to create a new post and then i came across this database related thread and thought .."Perfect".
Let me explain what was happening,
Short Explanation : I'm Posting a RELIABLE E.S.R. List
Granted Beginners won't understand, so.. here's the explanation before the list.
SUBJECT : GAINING RELIABLE E.S.R. VALUES TO KNOW IF A CAPACITOR IS GOOD OR BAD
HISTORY : I'm 50 years old, I have used this list for at least the last 40 years and i have not had to update it in the last 10 years at least.
Let me explain FOR THE NEWBIES
When Measuring capacitors when fixing stuff, You want to know the capacitor works.
so...
- You may crack out a continuity tester (This is a very poor way of testing a capacitor)
- You may crack out a Digital Multimeter in Capacitance Mode and do it that way (Also not very good, and doesn't work in Circuit)
- You may even buy an ESR Meter or component tester and it has a very tiny ESR list on it, or someone may have told you that
"Just keep it under 0.2 Ohms and you'll be right" well that's not correct either and the list you get with the ESR tester is not a very good
list
You're going to quickly learn
1. You need to test the caps reliably so that you don't install a shit capacitor in a unit thinking it was good and fixed because
this will cost you time and money
2. You need to know what value to expect NO MATTER WHAT THE CAPACITOR VALUE IS
Now yes you can download the datasheet, but
- You need to get the Exact Brand
- The Exact capacitance value
- The Exact voltage rating
- Th Exact Tolerance Rating
- The Exact Physical size
Because all of these things can vary the E.S.R. of a capacitor.
NOW HERE IS WHERE I SAVE YOU DECADES OF HEADACHES AND RESEARCH
Once upon a time i was confused as hell and i said this to myself ..
1. Given that different brands of same cap values can have Different E.S.R. Readings. How do we unify this a bit better so we don't have to store thousands of readings for 1 capacitor value ?
2. Do i need to have a list for EVERY SINGLE CAPACITOR VALUE OUT THERE ?
ANSWERS
Answer 2 First.. No you don't need to have in your list Every single cap value, You just need to have EVERY VALUE for the one's that you commonly use in your common applications and fixes.
you will come to understand that fixing monitors are going to have certain common cap values, then.. fixing Laptops are going have different ones, Fixing audio amplifiers are going to
different one's again. Let your electronics journey organically dictate which it is.
Answer 1 - Ok, so what you do is this (i have already done this) so let me explain it.
Let's say that we have 680uF capacitor , 100V Rated
Lets say the manufacturer datasheet says that the ESR should be 0.3 Ohms
OK, well all we need to know is. WHAT VALUES ARE WE GOING TO ACCEPT IN OUR WORK
Because this is all that is important
In my list for this capacitor i have the following values 0.07 0.13 0.18
LET ME EXPLAIN HOW THIS WORKS
the lowest figure is THE LOWEST MEASUREMENT I HAVE EVER TAKEN ON ANY CAPACITOR IN MY LIFE FOR THAT VALUE
the highest figure is THE UPPER LIMIT THAT I WILL ACCEPT AND WON'T GO BEYOND and that i feel confident with
The Middle figure is the average of ALL CAPACITORS EVER TESTED IN MY LIFE FOR THAT VALUE
so here is how this list was created.
1. you need to have some high E.S.R. values and blow shit up to know "Ohh right, so i can't go that high" LOL
2. if you remove say 10 capacitors from a board, Chances are they are not all going to be bad. What you do is.. Measure the ESR of all them and make sure they are pretty close to each other
in value of ESR (This is a good starting point).
AS A PERSONAL DECISION (and you are free to change the spreadsheet in anyway that you wish)
1. I didn't like using 0.0 as a minimum because, it goes without saying that that's a good value, I NEEDED REAL VALUES
2. I needed to know the Max that WOULD ABSOLUTELY GUARANTEE A FIX and that i didn't have to worry about it.
3. The Middle is the AVERAGE (Total number of capacitors tested and their total values added up divided by the number of capacitors tested.
Now when you get a new batch of say 20 but you have a mid reading of 0.13 you do the calculation based on 21 capacitors and the first one had an ESR of 0.13 this way , You are including every single capacitor that you have ever included in your list
LASTLY... THIS LIST GETS UPDATED LITERALLY EVERYTIME I USE OR TEST A NEW CAPACITOR thus over time it gets checked for accuracy
Now, all the values i have in this list ARE ALL THE VALUES I HAVE NEEDED TO USE IN 50 YEARS and all the ESR values are the ESR values that have always guaranteed me a fix
if you get to a point where YOU CHOOSE you want to increase the max value.......... THAT'S FINE, Just test it that it does work on the product safely. In some cases i do concede that the max value could be much higher according to the manufacturer datasheet, it's just that i have never tested a cap that high, and thus never had the need to increase the max value.
so with that being said and now you understand how the list came about
HERE IS THE LIST IN TEXT FORMAT
AND I HAVE ATTACHED A SPREADSHEET VERSION OF IT AS WELL, Feel free to use it anyway you like. I literally had to organise all my caps recently, I have 10,s of thousands of them, but only these values. so i figured i would share the list with the community
FOR BEGINNERS THIS IS AN INVALUABLE LIST FOR ELECTRONICS REPAIR.
Inventory List E.S.R.(Low) E.S.R.(Average) E.S.R.(High)
0.1 uF / 50 V 3.00 3.00 3.00
0.22 uF / 50 V 3.00 3.00 3.00
0.47 uF / 50 V 2.74 2.73 2.77
1 uF / 25 V 3.10 3.10 3.10
1 uF / 50 V 3.30 3.50 5.00
1 uF / 250 V 5.00 5.00 5.00
2.2 uF / 50 V 2.00 3.18 3.70
3.3 uF / 50 V 2.60 2.90 3.00
3.3 uF / 160 V 1.10 1.10 1.10
4.7 uF / 50 V 0.73 1.81 3.00
4.7 uF / 100 V 1.38 1.48 1.58
6.8 uF / 25 V 0.01 0.01 0.01
6.8 uF / 100 V 0.04 0.04 0.04
6.8 uF / 400 V 1.10 1.10 1.10
6.8 uF / 450 V 3.10 3.60 4.40
10 uF / 16 V 1.30 3.50 5.00
10 uF / 25 V 2.70 2.70 2.70
10 uF / 50 V 1.30 1.70 2.00
10 uF / 250 V 0.43 0.43 0.43
10 uF / 350 V 2.40 3.00 4.30
10 uF / 450 V 1.12 4.00 4.20
10 uF / 500 V 3.10 3.20 3.20
20 uF / 10 V 0.05 0.05 0.05
22 uF / 16 V 2.00 2.00 2.00
22 uF / 25 V 0.38 0.12 0.47
22 uF / 50 V 0.44 1.15 2.00
22 uF / 63 V 1.10 1.10 1.10
22 uF / 100 V 0.58 0.71 0.84
22 uF / 200 V 0.62 0.65 0.67
22 uF / 315 V 0.80 0.80 0.84
22 uF / 350 V 1.50 1.80 1.90
22 uF / 400 V 0.60 1.30 1.40
22 uF / 450 V 0.80 1.07 1.40
33 uF / 16 V 0.72 0.75 0.77
33 uF / 25 V 0.49 0.49 0.49
33 uF / 35 V 0.04 0.04 0.04
33 uF / 50 V 0.05 0.11 0.30
33 uF / 100 V 0.33 0.33 0.44
33 uF / 250 V 0.28 0.29 0.42
33 uF / 350 V 0.90 1.00 1.40
33 uF / 400 V 0.64 1.11 1.90
33 uF / 450 V 1.00 1.00 1.00
39 uF / 400 V 0.37 0.49 0.60
39 uF / 450 V 0.63 0.82 1.00
47 uF / 10 V 0.83 0.93 1.02
47 uF / 16 V 0.29 1.04 2.00
47 uF / 25 V 0.28 0.38 0.46
47 uF / 35 V 0.50 0.50 0.50
47 uF / 50 V 0.00 0.76 2.00
47 uF / 63 V 0.00 0.02 0.03
47uF / 100 V 0.26 0.31 0.35
47 uF / 160 V 0.31 0.31 0.31
47 uF / 250 V 0.06 0.52 0.83
47 uF / 350 V 0.38 0.46 0.54
47 uF / 400 V 0.41 1.00 1.50
47 uF / 450 V 0.71 0.71 0.71
50 uF / 450 V 0.90 0.90 0.90
56 uF / 35 V 0.00 0.00 0.01
56 uF / 450 V 0.80 0.80 0.80
63 uF / 68 V 0.00 0.00 0.01
68 uF / 63 V 0.01 0.02 0.10
68 uF / 100 V 0.05 0.05 0.05
68 uF / 160 V 0.13 0.15 0.16
68 uF / 200 V 0.59 0.59 0.59
68uF / 250 V 0.19 0.23 0.40
68 uF / 400 V 0.29 0.85 0.87
68 uF / 450 V 0.37 0.49 0.60
82 uF / 100 V 0.08 0.08 0.08
82 uF / 450 V 0.24 0.48 0.65
100 uF / 6.3 V 2.60 2.90 3.10
100 uF / 10 V 0.25 0.34 0.90
100 uF / 16 V 0.16 0.32 0.50
100 uF / 25 V 0.06 0.59 1.00
100 uF / 35 V 0.10 0.60 1.00
100 uF / 50 V 0.00 0.04 0.20
100 uF / 100 V 0.04 0.15 0.30
100 uF / 160 V 0.28 0.34 0.40
100 uF / 220 V 0.10 0.10 0.10
100 uF / 400 V 0.25 0.29 0.32
120 uF / 450 V 0.00 0.12 0.24
150 uF / 35 V 0.00 0.11 0.24
150 uF / 63 V 0.04 0.04 0.04
150 uF / 100 V 0.05 0.05 0.05
150 uF / 250 V 0.16 0.25 0.37
150 uF / 275 V 0.20 0.29 0.36
150 uF / 400 V 0.10 0.10 0.10
150 uF / 420 V 0.35 0.35 0.60
150 uF / 450 V 0.05 0.27 0.40
160 uF / 220 V 0.10 0.10 0.10
180 uF / 250 V 0.01 0.03 0.21
180 uF / 450 V 0.16 0.24 0.31
220 uF / 6.3 V 0.03 0.12 0.22
220 uF / 10 V 0.11 0.11 0.30
220 uF / 16 V 0.04 0.21 0.40
220 uF / 25 V 0.02 0.16 0.23
220 uF / 35 V 0.01 0.07 0.30
220 uF / 50 V 0.01 0.06 0.17
220 uF / 100 V 0.00 0.12 0.19
220 uF / 160 V 0.14 0.14 0.14
220 uF / 220 V 0.08 0.08 0.08
220 uF / 250 V 0.10 0.10 0.10
220 uF / 400 V 0.16 0.17 0.17
220 uF / 450 V 0.08 0.09 0.09
250 uF / 220 V 0.08 0.09 0.10
270 uF / 35 V 0.00 0.00 0.04
270 uF / 63 V 0.05 0.05 0.06
270 uF / 400 V 0.08 0.08 0.08
330 uF / 10 V 0.03 0.09 0.14
330 uF / 16 V 0.03 0.11 0.23
330 uF / 25 V 0.00 0.18 0.20
330 uF / 35 V 0.00 0.01 0.10
330 uF / 50 V 0.06 0.06 0.06
330 uF / 100 V 0.05 0.07 0.10
330 uF / 200 V 0.12 0.16 0.19
330 uF / 250 V 0.08 0.10 0.12
330 uF / 280 V 0.05 0.08 0.10
330 uF / 450 V 0.10 0.15 0.19
390uF / 35 V 0.02 0.02 0.05
390uF / 100 V 0.05 0.12 0.12
390uF / 450 V 0.10 0.13 0.15
470 uF / 10 V 0.04 0.04 0.04
470 uF / 16 V 0.01 0.03 0.23
470 uF / 25 V 0.01 0.03 0.17
470 uF / 35 V 0.00 0.01 0.09
470uF / 100 V 0.02 0.12 0.18
470uF / 140 V 0.11 0.11 0.11
470uF / 200 V 0.03 0.12 0.10
470uF / 250 V 0.09 0.09 0.09
560 uF / 10 V 0.12 0.16 0.20
560uF / 25 V 0.02 0.02 0.04
560uF / 35 V 0.00 0.00 0.05
560 uF / 200 V 0.16 0.17 0.18
560 uF / 250 V 0.13 0.15 0.17
560 uF / 280 V 0.05 0.04 0.10
680 uF / 10 V 0.07 0.32 0.50
680 uF / 16 V 0.00 0.00 0.05
680 uF / 25 V 0.00 0.09 0.11
680 uF / 35 V 0.00 0.00 0.05
680 uF / 50 V 0.05 0.05 0.05
680 uF / 100 V 0.07 0.13 0.18
680 uF / 200 V 0.11 0.15 0.24
680 uF / 250 V 0.10 0.10 0.10
820 uF / 25 V 0.03 0.03 0.03
820 uF / 250 V 0.11 0.11 0.11
1000 uF / 6.3 V 0.00 0.00 0.00
1000 uF / 10 V 0.00 0.02 0.06
1000 uF / 16 V 0.00 0.02 0.07
1000 uF / 25 V 0.00 0.04 0.20
1000 uF / 35 V 0.00 0.04 0.07
1000 uF / 50 V 0.04 0.08 0.11
1000 uF / 75 V 0.05 0.05 0.05
1000 uF / 100 V 0.07 0.07 0.07
1000 uF / 230 V 0.07 0.07 0.07
1000 uF / 250 V 0.08 0.08 0.08
1200 uF / 6.3 V 0.00 0.01 0.09
1500 uF / 6.3 V 0.00 0.02 0.04
1500 uF / 10 V 0.00 0.10 0.14
1500 uF / 16 V 0.00 0.00 0.04
1500 uF / 25 V 0.00 0.00 0.04
1500 uF / 35 V 0.00 0.07 0.11
1800 uF / 80 V 0.08 0.08 0.08
2200 uF / 10 V 0.04 0.13 0.17
2200 uF / 6.3 V 0.00 0.00 0.00
2200 uF / 16 V 0.00 0.00 0.10
2200 uF / 25 V 0.00 0.05 0.09
2200 uF / 35 V 0.11 0.12 0.12
2200 uF / 100 V 0.06 0.06 0.06
3300 uF / 6.3 V 0.00 0.01 0.06
3300 uF / 10 V 0.03 0.04 0.05
3300 uF / 25 V 0.00 0.09 0.11
3300 uF / 35 V 0.01 0.01 0.01
3300 uF / 100 V 0.05 0.05 0.06
4700 uF / 25 V 0.06 0.06 0.06
4700 uF / 35 V 0.16 0.16 0.16
4700 uF / 50 V 0.04 0.04 0.04
EDIT : 1 last thing
If you ever come across a value that is not in this list what you do is this
1. Enter the value in the correct position
2. test the capacitor you have
But the obviousness of the problem is... HOW DO YOU KNOW WHAT THE CORRECT VALUE IS ?
Answer : Look at the ESR value of the caps above and below it as there is direct correlation when increasing or decreasing in value
between capacitance and voltage. so just gets the values of the caps above and below, after that, when you get more of that value
cap you can test them against the value you currently have an update it
Lastly you can go to one of the suppliers and get the datasheet and look up the ESR value if available
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