Difference between revisions of "Capacitor size"
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| + | For ceramic capacitors, most (all) datasheets only contain a small range in V or C, so I did a search on farnell specifying |
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| + | [http://nl.farnell.com/jsp/search/browse.jsp?N=202740+110482324+110141065+110524857+110029770&Ns=P_PRICE_FARNELL_NL|0&locale=nl_NL&appliedparametrics=true&getResults=true&suppressRedirect=true&isRedirect=&No=0&divisionLocale=nl_NL&catalogId=&skipManufacturer=false&skipParametricAttributeId=&prevNValues=202740+110482324+110141065+110524857+110029770&filtersHidden=false&appliedHidden=false&autoApply=false&originalQueryURL=%2Fjsp%2Fsearch%2Fbrowse.jsp%3FN%3D202740%26No%3D0%26getResults%3Dtrue%26appliedparametrics%3Dtrue%26locale%3Dnl_NL%26divisionLocale%3Dnl_NL%26catalogId%3D%26skipManufacturer%3Dfalse%26skipParametricAttributeId%3D%26prevNValues%3D202740 case-style=1206, tolerance=10%, material=X7R, Temp=125C], and then searched the highest capacitance for each max Voltage, resulting in: |
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Latest revision as of 17:15, 8 March 2013
A few Panasonic Aluminum Electrolytic Capacitors (all have diameter 18mm, length 35.5mm = 1.78e-05 m^3):
| C [mF] | V [V] | CV | CV^2/2 | CV/volume [mFV/m^3] | CV^2/(2*volume) [J/m^3] |
|---|---|---|---|---|---|
| 22.0 | 6.3 | 139 | 437 | 7.8e+03 | 2.5e+07 |
| 15.0 | 10.0 | 150 | 750 | 8.4e+03 | 4.2e+07 |
| 10.0 | 10.0 | 100 | 500 | 5.6e+03 | 2.8e+07 |
| 6.8 | 25.0 | 170 | 2125 | 9.5e+03 | 1.2e+08 |
| 4.7 | 35.0 | 164 | 2879 | 9.2e+03 | 1.6e+08 |
| 3.3 | 50.0 | 165 | 4125 | 9.3e+03 | 2.3e+08 |
| 2.2 | 63.0 | 139 | 4366 | 7.8e+03 | 2.5e+08 |
| 1.0 | 100.0 | 100 | 5000 | 5.6e+03 | 2.8e+08 |
For ceramic capacitors, most (all) datasheets only contain a small range in V or C, so I did a search on farnell specifying case-style=1206, tolerance=10%, material=X7R, Temp=125C, and then searched the highest capacitance for each max Voltage, resulting in:
| C [uF] | V [V] | CV | CV^2/2 | CV/volume [mFV/m^3] | CV^2/(2*volume) [J/m^3] |
|---|---|---|---|---|---|
| 22 | 6.3 | 0.1 | 0.4 | 4.3e+04 | 1.4e+08 |
| 22 | 10.0 | 0.2 | 1 | 6.9e+04 | 3.4e+08 |
| 10 | 16.0 | 0.2 | 1 | 5e+04 | 4e+08 |
| 10 | 25.0 | 0.2 | 3 | 7.8e+04 | 9.8e+08 |
| 4.7 | 50.0 | 0.2 | 6 | 7.3e+04 | 1.8e+09 |
| 1 | 100.0 | 0.1 | 5 | 3.1e+04 | 1.6e+09 |
| 0.1 | 200.0 | 0.02 | 2 | 6.2e+03 | 6.2e+08 |
| 0.068 | 500.0 | 0.03 | 8 | 1.1e+04 | 2.7e+09 |
| 0.033 | 630.0 | 0.02 | 7 | 6.5e+03 | 2e+09 |
| 0.022 | 1000.0 | 0.02 | 1e+01 | 6.9e+03 | 3.4e+09 |
| 0.001 | 2000.0 | 0.002 | 2 | 6.2e+02 | 6.2e+08 |
The volume was calculated using: 1206; L=3.2mm, W=1.6mm, T=0.8mm..1.6mm (mostly 1.0m), M_MB=0.6mm, v=2mm*1.6mm*1.0mm=3.2e-9m^3 1856565RL http://www.farnell.com/datasheets/1662086.pdf
