Carry out and calculate your coils

The coils or reels have a remarkable characteristic: these are the only passive components that one can manufacture easily oneself, and which one must even manufacture in certain cases, when one needs very low values in particular. Indeed, it is enough to roll up some whorls of wire on a chuck, to see even on nothing or in the air like one says then, to carry out a true coil.
This possibility being very often made profitable, especially in the assemblies high frequency where values of relatively low inductances are generally necessary.
For that, it is necessary me to put at evil a largely widespread generally accepted idea : it is not because you will manufacture a coil yourself which it will be worse or less reliable than a model commercial for little than you take a minimum of precautions. Of course, small moulded inductances, coded by rings of colour as of resistances are very pretty, but they are not necessarily of better quality, especially for the low values, than your personal achievements.
Reels with only one layer, without core
The coils easiest to calculate are the coils called to air or on air, which means quite simply that they are wound on nothing for most rigid of them or of course a core completely nonmagnetic plastic tube for example for the others.
To be honest, there does not exist formula making it possible to determine with exactitude the value of a coil. The relations which I will propose to you are thus approximate formulas which give a valid result to 15% close approximately. This approximation must however be relativised. Do not forget indeed that the value of many condensators is known only with a margin of 20%, and still I do not speak about chemical for whom the tolerance can reach 50% as soon as the µF is exceeded!
For the coils with air with only one layer, that is to say those which you will generally carry out and most easily, the most known formula and most precise is that known as of Nagaoka that here:
2. ⁄ B has K 2. ⁄ B has K
0 1 2 0,526
0,05 0,97 2,5 0,472
0,1 0,959 3 0,429
0,15 0,939 3,5 0,394
0,2 0,92 4 0,365
0,25 0,902 5 0,32
0,3 0,884 6 0,283
0,4 0,85 7 0,258
0,5 0,818 8 0,237
0,6 0,789 9 0,219
0,7 0,761 10 0,203
0,8 0,735 25 0,105
A = ray of the reel in cm has 0,9 0,711 50 0,061
B = length of the reel in cm 1 0,688 75 0,043
N = many whorls 1,25 0,638 100 0,035
K = coefficient given by the table 1,5 0,595 200 0,019
L = inductance in µH 1,75 0,558 400 0,011
L = (0,0395 . a2 . n2 . k) ⁄ b
This formula gives a result in µH if dimensions are indicated in cm. Constant K which appears in this relation is given by the table according to report ⁄ ratio 2. a ⁄ b. The diameter of the wire, which does not appear in this relation, depends on the number of whorls and the length of the reel. It can almost be freely selected but it is necessary to take account of the remarks that here.
The ohmic resistance of a reel must be as weak as possible, so that it as well as possible approaches the perfect component of resistance null series. One thus may find it beneficial to choose wire as large as possible to minimise this resistance. This choice is obviously limited automatically by the report ⁄ ratio of dimension B to the number of whorls.
Impossibilities can also appear. Thus, a reel for which it would be necessary to roll up 1000 whorls of wire on 5 mm length would be unrealizable since one would then need wire of 5 ⁄ 1000 of mm what does not exist. Several master keys can thus be necessary during the application of this relation before finding a combination of parameters satisfactory.
Reels with several layers without core
If you made some tests with the preceding relation, you will realise very quickly that to obtain values of relatively important inductances, it is necessary to wind a very great number of whorls.
One arrives then relatively quickly at blockings such that evoked above and such values of inductances must be regarded as incompatible of a winding with only one layer. A first solution passes by the superposition of these last.
In this case, the formula of Nagaoka is not usable any more
it is necessary to call upon the relation called simplified formula of Maxwell
D = reel size in m
B = length of the reel in m
E = thickness of rolling up in m
N = many whorls
L = (n2 * d2) * (d2 - 2,25 * e) ⁄ d * (43,8 * d + 112,5 * b2)
It takes into account the thickness of winding and authorises of this fact several layers. Unfortunately, this relation is less precise than the preceding one and this more especially as the number of layers is high.
Windings on pot ferrite
When one wants to carry out a reel of value so much is not very important, the coil with air is rather badly adapted and it is necessary to call upon an element which concentrates the lines of field inside the reel. This element is not other than a magnetic core but, to obtain relatively precise results, it is advised to call either upon a ferrite core, or with a pot of same material.
These supports, visible on the figure opposite, exist at present with sizes and quite precise references and, if you did not mix them in your drawers, you will be able to very precisely calculate the coil which you will obtain by winding there wire thanks to their key parameter which is specific inductance.
This data is baptized Al and one must always provide it to you when you buy such a component. Indeed, if you do not have which it, you will not have any means of determining it and your pot or your torus will be perfectly useless. Specific inductance Al depends on material of the torus or from the pot because, even if all ferrites resemble each other, their composition and their properties magnetic vary in great proportions. Al can thus be ranging between 5 and approximately 1000.
The calculation of a reel carried out on a torus or a pot is of an extreme simplicity since it calls upon the relation:
L = n2 . Al
This relation only forces to pay attention to the unit in which is provided to you Al in order to adapt the unit of L consequently. One finds indeed sometimes nH by square turns or of the pH by square turns in the sheets of characteristics of the tori and the pots.
In addition to this simplicity and this precision of calculation, another advantage of the tori and pots are that the coils which are realised there are far from sensitive to their environment and almost do not radiate. It is exact by nature for the tori since, because of their structure, the magnetic core does not comprise any opening by which the produced magnetic field could flee.
For the pots it is a little less true since the two half-shells are never perfectly jointed, but the weak escapes which occur on the level of their assembly are strongly attenuated by the metal shielding generally provided with the latter.
Reels on printed circuit
If you handled apparatuses bringing into play very high frequencies such as the VHF or the UHF, but also sometimes the simple range of broadcasting FM, you noticed certainly the increasingly frequent use of printed coils.
These last are carried out by rolling up in spiral of a track of printed circuit. Such a solution is interesting in more than one way because it has the following advantages indeed:
an excellent reproducibility of the coil since it is engraved at the same time as the circuit by respecting a very precise drawing
a total insensitivity to the vibrations, which is not the case of the coil with air in particular
a reduction in the component count to be stored and establish, which is without interest on the level amateur but very interesting for mass productions where all is good to reduce the costs.
Within sight of these praises, you are in right to ask you why so interesting coils are confined with only very the high frequencies. In fact, one can carry out with this process only coils of low values which thus find their interest only in very high frequency.
The figure opposite presents such a coil with the parameters used in the associated formula making it possible to calculate its value. Here still, it is about an approximate relation but which gives precise results to 10% close approximately. In practise, and although one has the choice for has and B, one generally uses values about the Misters.
c = (L ⁄ B)0,375, for B = 2,7 . 10-9 . ( 1 ⁄ (1 + b ⁄ a)1,67 ) . 1 ⁄ a1,67
All dimensions are in mm and the value of L is in H. It is not a very practical formula but, with a scientific calculator one arrives rather quickly at the desired result.

there are basically two types of europe grid
the three phases 230 volt and the three phases 400 volt
for the three phases 400 volt plusieur neutral regimes are available
plans ares :TT, TN, IT

plans TT :the neutral of the facility and that the masses are directly linked to land

plans TN :in this regime there are two variables TNS,TNC
TNS :earth and neutral are separate drivers
TNC :earth and neutral not form a single drivers often appoint PEN

plans IT :land and neutral are isolated from one another

produir for the electricity there are three types of generator, the dynamo (DC current), generator asynchronous (alternatif current for cheap production and unprofitable), synchronous generator(alternatif current for high current capacity)

alternate current=current whose sense of movement alternate

direct current=current whose sense of movement unidirectional

synchronous motor
the rotor is supplying direct current, by a system of ring, creates at magnetic field that follows the rotor magnetic field stator

asynchronous motor
the rotor is made up of an axis aimenté, the rotor is composed of three pairs of winding déphasé 120°, when the engine is fuel that it generates a magnetic field turning point not synchronized

connecting star triangle

size symbol unity symbol other unity équivalence
Tension U  volt V    
Electromotive force E  volt V    
Electric field E volt ⁄ m V ⁄ m    
Intensity I ampère A    
Electricity quantity Q coulomb C ampère.heure 1 Ah = 3600 C
Power P watt W    
Energy W joule J    
Frequency f hertz Hz    
Pulsation w radian ⁄ seconde rad/s    
Dephasing, angle a,q.. radian rad degree 1 rad = 57,295 deg
Temperature t,q.. degré Celsius  °C    
Time t seconde  s    
Resistance R  ohm  W    
Conductance G  siemens  S    
Impedance Z  ohm  W    
Reactance X  ohm  W    
Admittance Y  siemens  S    
Susceptance B  siemens  S    
Resistivity r  ohm.mètre W.m    
Inductance L henry H    
Capacity d’un cond. C  farad  F    
Magnetic induction B  tesla  T  gauss  
Flow of induction F  weber  Wb  maxwell 1 Wb = 10.8 Mx

The marking of resistances



Resistances of power or high degree of accuracy, the resistance networks and the components cms, profit from a direct marking to indicate their ohmic values. Following the example code of the colours, there exist conventions of reading to interpret the value of these resistances.
Alphanumeric marking
For the flat components, resistances of power or components assembled on the surface, one uses an alphanumeric code to represent the value of the component which can be presented in two forms: 1) two digits indicating the value, follow-ups of another for the multiplier and a letter specifying the tolerance. For example, 472 J mean 4.700 O (that is to say 47 X 102), with a tolerance of ± 5% (letter J). For the E48 series, it is necessary to add a third figure. A resistance of 10 kO ± 5% will be able to be written: 103 J or 1.002 J.
Two digits indicating the value, separated by a letter corresponding to a multiplier (R for 1, K for thousand, M for 1 million) and indicating the comma and follow-ups from a letter specifying the tolerance. 4K7 J means 4.700 O. With tolerance of ± 5%. The coding of the tolerances is given in the following table.
Lettre B D F G J K M
Tolérance ± 0,1% ± 0,5% ± 1% ± 2% ± 5% ± 10% ± 20%
The marking of resistances of power or precision
The letter "R" replaces the decimal point in certain markings. Example : R47 = 0,47 ohm; 4R 7 = 4,7 ohms.
 
The marking of the resistance networks SIP
Many legs and physical constitution (6X-2): 6 = many legs or terminaisons X = Thick Film (thick layer)
Wiring: 4 = doubly terminated 2 = Isolated 1 = Connected in the Bus
Values of resistance
Indication -222: the first 2 figures are significatifsLe 3rd figure gives the number of zero.
Tolerance: No indication = ± 2% = 6x2 - 222F = ± 1% (of 100 ohms with 5 Mohms) = 6x2 - 222 F
Terminations: no indication = Chock ⁄ Lead-plated = covered Tin ⁄ lead, LF = Chock-plated (lead free) galvanised without lead (except standard circuit 4), L = Chock-plated (lead free) galvanised without lead (only standard circuit 4), example: 6x2 - 222 F LF.
The terminations without lead obey the RoHS directive.
Table of usual values of resistances
The table of the values for wiring of the type 1 and 2 is indicated below.
Wiring 4: double termination
The marking of the resistance networks DIP
Name 4116 T-2
Reference: 41 = model (41 = DIP) 16 = many legs or terminaisonsT = Thin Film (thin layer)
Wiring: 2 = Connected in Bus1 = Insulated
Values of resistance: 2203 B C
The first 3 figures are significatifsLe 4th figure gives the number of zero.2203 = 220 Kohms
Tolerance : BB = ± 0.1%D = ± 0.5%F = ± 1%
Temperature coefficient : CA = ± 100ppm ⁄ °CB = ± 50ppm ⁄ °CC = ± 25ppm ⁄ °C
Differential tolerance between resistance of the network (Option): With = ± 0.05% ⁄ R1B = ± 0.1% ⁄ R1D = ± 0.5% ⁄ R1
Terminations: L = Chock-plated (lead free) = galvanised without plomb, no indication = Chock ⁄ Lead-plated = covered tin ⁄ lead.

The marking of resistances CMS


Resistances cms identified by three digits E-24 series:
the first and the second are the significant figures, the third is the number of zeros. The letter "R" replaces the decimal point. Example: 473 is worth 4 then 7 then 3 zeros, therefore 47000 ohms or 47 Kohms.
 
E3 = 50% tolerance
E6 = 20% tolerance
E12 = 10% tolerance
E24 = 5% tolerance
E48 = 2% tolerance
E96 = 1% tolerance
E192 = 0.5, 0.25, 0.1% tolerance
Table 4 digit codes EIA-24
Code Value Code Value Code Value Code Value
0R10 0.1Ω 1R00 1Ω 10R0 10Ω 1000 100Ω
0R11 0.11Ω 1R10 1.1Ω 11R0 11Ω 1100 110Ω
0R12 0.12Ω 1R20 1.2Ω 12R0 12Ω 1200 120Ω
0R13 0.13Ω 1R30 1.3Ω 13R0 13Ω 1300 130Ω
0R15 0.15Ω 1R50 1.5Ω 15R0 15Ω 1500 150Ω
0R16 0.16Ω 1R60 1.6Ω 16R0 16Ω 1600 160Ω
0R18 0.18Ω 1R80 1.8Ω 18R0 18Ω 1800 180Ω
0R20 0.2Ω 2R00 2Ω 20R0 20Ω 2000 200Ω
0R22 0.22Ω 2R20 2.2Ω 22R0 22Ω 2200 220Ω
0R24 0.24Ω 2R40 2.4Ω 24R0 24Ω 2400 240Ω
0R27 0.27Ω 2R70 2.7Ω 27R0 27Ω 2700 270Ω
0R30 0.3Ω 3R00 3Ω 30R0 30Ω 3000 300Ω
0R33 0.33Ω 3R30 3.3Ω 33R0 33Ω 3300 330Ω
0R36 0.36Ω 3R60 3.6Ω 36R0 36Ω 3600 360Ω
0R39 0.39Ω 3R90 3.9Ω 39R0 39Ω 3900 390Ω
0R43 0.43Ω 4R30 4.3Ω 43R0 43Ω 4300 430Ω
0R47 0.47Ω 4R70 4.7Ω 47R0 47Ω 4700 470Ω
0R51 0.51Ω 5R10 5.1Ω 51R0 51Ω 5100 510Ω
0R56 0.56Ω 5R60 5.6Ω 56R0 56Ω 5600 560Ω
0R62 0.62Ω 6R20 6.2Ω 62R0 62Ω 6200 620Ω
0R68 0.68Ω 6R80 6.8Ω 68R0 68Ω 6800 680Ω
0R75 0.75Ω 7R50 7.5Ω 75R0 75Ω 7500 750Ω
0R82 0.82Ω 8R20 8.2Ω 82R0 82Ω 8200 820Ω
0R91 0.91Ω 9R10 9.1Ω 91R0 91Ω 9100 910Ω
Table of codes EIA-96
Code Value Code Value Code Value Code Value
01Y 1Ω 01X 10Ω 01A 100Ω 01B 1kΩ
02Y 1.02Ω 02X 10.2Ω 02A 102Ω 02B 1.02kΩ
03Y 1.05Ω 03X 10.5Ω 03A 105Ω 03B 1.05kΩ
04Y 1.07Ω 04X 10.7Ω 04A 107Ω 04B 1.07kΩ
05Y 1.1Ω 05X 11Ω 05A 110Ω 05B 1.1kΩ
06Y 1.13Ω 06X 11.3Ω 06A 113Ω 06B 1.13kΩ
07Y 1.15Ω 07X 11.5Ω 07A 115Ω 07B 1.15kΩ
08Y 1.18Ω 08X 11.8Ω 08A 118Ω 08B 1.18kΩ
09Y 1.21Ω 09X 12.1Ω 09A 121Ω 09B 1.21kΩ
10Y 1.24Ω 10X 12.4Ω 10A 124Ω 10B 1.24kΩ
11Y 1.27Ω 11X 12.7Ω 11A 127Ω 11B 1.27kΩ
12Y 1.3Ω 12X 13Ω 12A 130Ω 12B 1.3kΩ
13Y 1.33Ω 13X 13.3Ω 13A 133Ω 13B 1.33kΩ
14Y 1.37Ω 14X 13.7Ω 14A 137Ω 14B 1.37kΩ
15Y 1.4Ω 15X 14Ω 15A 140Ω 15B 1.4kΩ
16Y 1.43Ω 16X 14.3Ω 16A 143Ω 16B 1.43kΩ
17Y 1.47Ω 17X 14.7Ω 17A 147Ω 17B 1.47kΩ
18Y 1.5Ω 18X 15Ω 18A 150Ω 18B 1.5kΩ
19Y 1.54Ω 19X 15.4Ω 19A 154Ω 19B 1.54kΩ
20Y 1.58Ω 20X 15.8Ω 20A 158Ω 20B 1.58kΩ
21Y 1.62Ω 21X 16.2Ω 21A 162Ω 21B 1.62kΩ
22Y 1.65Ω 22X 16.5Ω 22A 165Ω 22B 1.65kΩ
23Y 1.69Ω 23X 16.9Ω 23A 169Ω 23B 1.69kΩ
24Y 1.74Ω 24X 17.4Ω 24A 174Ω 24B 1.74kΩ
25Y 1.78Ω 25X 17.8Ω 25A 178Ω 25B 1.78kΩ
26Y 1.82Ω 26X 18.2Ω 26A 182Ω 26B 1.82kΩ
27Y 1.87Ω 27X 18.7Ω 27A 187Ω 27B 1.87kΩ
28Y 1.91Ω 28X 19.1Ω 28A 191Ω 28B 1.91kΩ
29Y 1.96Ω 29X 19.6Ω 29A 196Ω 29B 1.96kΩ
30Y 2Ω 30X 20Ω 30A 200Ω 30B 2kΩ
31Y 2.05Ω 31X 20.5Ω 31A 205Ω 31B 2.05kΩ
32Y 2.1Ω 32X 21Ω 32A 210Ω 32B 2.1kΩ
33Y 2.15Ω 33X 21.5Ω 33A 215Ω 33B 2.15kΩ
34Y 2.21Ω 34X 22.1Ω 34A 221Ω 34B 2.21kΩ
35Y 2.26Ω 35X 22.6Ω 35A 226Ω 35B 2.26kΩ
36Y 2.32Ω 36X 23.2Ω 36A 232Ω 36B 2.32kΩ
37Y 2.37Ω 37X 23.7Ω 37A 237Ω 37B 2.37kΩ
38Y 2.43Ω 38X 24.3Ω 38A 243Ω 38B 2.43kΩ
39Y 2.49Ω 39X 24.9Ω 39A 249Ω 39B 2.49kΩ
40Y 2.55Ω 40X 25.5Ω 40A 255Ω 40B 2.55kΩ
41Y 2.61Ω 41X 26.1Ω 41A 261Ω 41B 2.61kΩ
42Y 2.67Ω 42X 26.7Ω 42A 267Ω 42B 2.67kΩ
43Y 2.74Ω 43X 27.4Ω 43A 274Ω 43B 2.74kΩ
44Y 2.8Ω 44X 28Ω 44A 280Ω 44B 2.8kΩ
45Y 2.87Ω 45X 28.7Ω 45A 287Ω 45B 2.87kΩ
46Y 2.94Ω 46X 29.4Ω 46A 294Ω 46B 2.94kΩ
47Y 3.01Ω 47X 30.1Ω 47A 301Ω 47B 3.01kΩ
48Y 3.09Ω 48X 30.9Ω 48A 309Ω 48B 3.09kΩ
49Y 3.16Ω 49X 31.6Ω 49A 316Ω 49B 3.16kΩ
50Y 3.24Ω 50X 32.4Ω 50A 324Ω 50B 3.24kΩ
51Y 3.32Ω 51X 33.2Ω 51A 332Ω 51B 3.32kΩ
52Y 3.4Ω 52X 34Ω 52A 340Ω 52B 3.4kΩ
53Y 3.48Ω 53X 34.8Ω 53A 348Ω 53B 3.48kΩ
54Y 3.57Ω 54X 35.7Ω 54A 357Ω 54B 3.57kΩ
55Y 3.65Ω 55X 36.5Ω 55A 365Ω 55B 3.65kΩ
56Y 3.74Ω 56X 37.4Ω 56A 374Ω 56B 3.74kΩ
57Y 3.83Ω 57X 38.3Ω 57A 383Ω 57B 3.83kΩ
58Y 3.92Ω 58X 39.2Ω 58A 392Ω 58B 3.92kΩ
59Y 4.02Ω 59X 40.2Ω 59A 402Ω 59B 4.02kΩ
60Y 4.12Ω 60X 41.2Ω 60A 412Ω 60B 4.12kΩ
61Y 4.22Ω 61X 42.2Ω 61A 422Ω 61B 4.22kΩ
62Y 4.32Ω 62X 43.2Ω 62A 432Ω 62B 4.32kΩ
63Y 4.42Ω 63X 44.2Ω 63A 442Ω 63B 4.42kΩ
64Y 4.53Ω 64X 45.3Ω 64A 453Ω 64B 4.53kΩ
65Y 4.64Ω 65X 46.4Ω 65A 464Ω 65B 4.64kΩ
66Y 4.75Ω 66X 47.5Ω 66A 475Ω 66B 4.75kΩ
67Y 4.87Ω 67X 48.7Ω 67A 487Ω 67B 4.87kΩ
68Y 4.91Ω 68X 49.1Ω 68A 491Ω 68B 4.91kΩ
69Y 5.11Ω 69X 51.1Ω 69A 511Ω 69B 5.11kΩ
70Y 5.23Ω 70X 52.3Ω 70A 523Ω 70B 5.23kΩ
71Y 5.36Ω 71X 53.6Ω 71A 536Ω 71B 5.36kΩ
72Y 5.49Ω 72X 54.9Ω 72A 549Ω 72B 5.49kΩ
73Y 5.62Ω 73X 56.2Ω 73A 562Ω 73B 5.62kΩ
74Y 5.76Ω 74X 57.6Ω 74A 576Ω 74B 5.76kΩ
75Y 5.9Ω 75X 59Ω 75A 590Ω 75B 5.9kΩ
76Y 6.04Ω 76X 60.4Ω 76A 604Ω 76B 6.04kΩ
77Y 6.19Ω 77X 61.9Ω 77A 619Ω 77B 6.19kΩ
78Y 6.34Ω 78X 63.4Ω 78A 634Ω 78B 6.34kΩ
79Y 6.49Ω 79X 64.9Ω 79A 649Ω 79B 6.49kΩ
80Y 6.65Ω 80X 66.5Ω 80A 665Ω 80B 6.65kΩ
81Y 6.81Ω 81X 68.1Ω 81A 681Ω 81B 6.81kΩ
82Y 6.98Ω 82X 69.8Ω 82A 698Ω 82B 6.98kΩ
83Y 7.15Ω 83X 71.5Ω 83A 715Ω 83B 7.15kΩ
84Y 7.32Ω 84X 73.2Ω 84A 732Ω 84B 7.32kΩ
85Y 7.5Ω 85X 75Ω 85A 750Ω 85B 7.5kΩ
86Y 7.68Ω 86X 76.8Ω 86A 768Ω 86B 7.68kΩ
87Y 7.87Ω 87X 78.7Ω 87A 787Ω 87B 7.87kΩ
88Y 8.06Ω 88X 80.6Ω 88A 806Ω 88B 8.06kΩ
89Y 8.25Ω 89X 82.5Ω 89A 825Ω 89B 8.25kΩ
90Y 8.45Ω 90X 84.5Ω 90A 845Ω 90B 8.45kΩ
91Y 8.66Ω 91X 86.6Ω 91A 866Ω 91B 8.66kΩ
92Y 8.87Ω 92X 88.7Ω 92A 887Ω 92B 8.87kΩ
93Y 9.09Ω 93X 90.9Ω 93A 909Ω 93B 9.09kΩ
94Y 9.31Ω 94X 93.1Ω 94A 931Ω 94B 9.31kΩ
95Y 9.59Ω 95X 95.9Ω 95A 959Ω 95B 9.59kΩ
96Y 9.76Ω 96X 97.6Ω 96A 976Ω 96B 9.76kΩ
Table of codes 3 digits
Code Value Code Value Code Value Code Value
R10 0.1Ω 1R0 1Ω 100 10Ω 101 100Ω
R11 0.11Ω 1R1 1.1Ω 110 11Ω 111 110Ω
R12 0.12Ω 1R2 1.2Ω 120 12Ω 121 120Ω
R13 0.13Ω 1R3 1.3Ω 130 13Ω 131 130Ω
R15 0.15Ω 1R5 1.5Ω 150 15Ω 151 150Ω
R16 0.16Ω 1R6 1.6Ω 160 16Ω 161 160Ω
R18 0.18Ω 1R8 1.8Ω 180 18Ω 181 180Ω
R20 0.2Ω 2R0 2Ω 200 20Ω 201 200Ω
R22 0.22Ω 2R2 2.2Ω 220 22Ω 221 220Ω
R24 0.24Ω 2R4 2.4Ω 240 24Ω 241 240Ω
R27 0.27Ω 2R7 2.7Ω 270 27Ω 271 270Ω
R30 0.3Ω 3R0 3Ω 300 30Ω 301 300Ω
R33 0.33Ω 3R3 3.3Ω 330 33Ω 331 330Ω
R36 0.36Ω 3R6 3.6Ω 360 36Ω 361 360Ω
R39 0.39Ω 3R9 3.9Ω 390 39Ω 391 390Ω
R43 0.43Ω 4R3 4.3Ω 430 43Ω 431 430Ω
R47 0.47Ω 4R7 4.7Ω 470 47Ω 471 470Ω
R51 0.51Ω 5R1 5.1Ω 510 51Ω 511 510Ω
R56 0.56Ω 5R6 5.6Ω 560 56Ω 561 560Ω
R62 0.62Ω 6R2 6.2Ω 620 62Ω 621 620Ω
R68 0.68Ω 6R8 6.8Ω 680 68Ω 681 680Ω
R75 0.75Ω 7R5 7.5Ω 750 75Ω 751 750Ω
R82 0.82Ω 8R2 8.2Ω 820 82Ω 821 820Ω
R91 0.91Ω 9R1 9.1Ω 910 91Ω 911 910Ω
Table 4-digit SMD resistors (E96 series)
Code Value Code Value Code Value Code Value
0R10 0.1Ω 1R00 1Ω 10R0 10Ω 1000 100Ω
R102 0.102Ω 1R02 1.02Ω 10R2 10.2Ω 1020 102Ω
R105 0.105Ω 1R05 1.05Ω 10R5 10.5Ω 1050 105Ω
R107 0.107Ω 1R07 1.07Ω 10R7 10.7Ω 1070 107Ω
0R11 0.11Ω 1R10 1.1Ω 11R0 11Ω 1100 110Ω
R113 0.113Ω 1R13 1.13Ω 11R3 11.3Ω 1130 113Ω
R115 0.115Ω 1R15 1.15Ω 11R5 11.5Ω 1150 115Ω
R118 0.118Ω 1R18 1.18Ω 11R8 11.8Ω 1180 118Ω
R121 0.121Ω 1R21 1.21Ω 12R1 12.1Ω 1210 121Ω
R124 0.124Ω 1R24 1.24Ω 12R4 12.4Ω 1240 124Ω
R127 0.127Ω 1R27 1.27Ω 12R7 12.7Ω 1270 127Ω
0R13 0.13Ω 1R30 1.3Ω 13R0 13Ω 1300 130Ω
R133 0.133Ω 1R33 1.33Ω 13R3 13.3Ω 1330 133Ω
R137 0.137Ω 1R37 1.37Ω 13R7 13.7Ω 1370 137Ω
0R14 0.14Ω 1R40 1.4Ω 14R0 14Ω 1400 140Ω
R143 0.143Ω 1R43 1.43Ω 14R3 14.3Ω 1430 143Ω
R147 0.147Ω 1R47 1.47Ω 14R7 14.7Ω 1470 147Ω
0R15 0.15Ω 1R50 1.5Ω 15R0 15Ω 1500 150Ω
R154 0.154Ω 1R54 1.54Ω 15R4 15.4Ω 1540 154Ω
R158 0.158Ω 1R58 1.58Ω 15R8 15.8Ω 1580 158Ω
R162 0.162Ω 1R62 1.62Ω 16R2 16.2Ω 1620 162Ω
R165 0.165Ω 1R65 1.65Ω 16R5 16.5Ω 1650 165Ω
R169 0.169Ω 1R69 1.69Ω 16R9 16.9Ω 1690 169Ω
R174 0.174Ω 1R74 1.74Ω 17R4 17.4Ω 1740 174Ω
R178 0.178Ω 1R78 1.78Ω 17R8 17.8Ω 1780 178Ω
R182 0.182Ω 1R82 1.82Ω 18R2 18.2Ω 1820 182Ω
R187 0.187Ω 1R87 1.87Ω 18R7 18.7Ω 1870 187Ω
R191 0.191Ω 1R91 1.91Ω 19R1 19.1Ω 1910 191Ω
R196 0.196Ω 1R96 1.96Ω 19R6 19.6Ω 1960 196Ω
0R20 0.2Ω 2R00 2Ω 20R0 20Ω 2000 200Ω
R205 0.205Ω 2R05 2.05Ω 20R5 20.5Ω 2050 205Ω
0R21 0.21Ω 2R10 2.1Ω 21R0 21Ω 2100 210Ω
R215 0.215Ω 2R15 2.15Ω 21R5 21.5Ω 2150 215Ω
R221 0.221Ω 2R21 2.21Ω 22R1 22.1Ω 2210 221Ω
R226 0.226Ω 2R26 2.26Ω 22R6 22.6Ω 2260 226Ω
R232 0.232Ω 2R32 2.32Ω 23R2 23.2Ω 2320 232Ω
R237 0.237Ω 2R37 2.37Ω 23R7 23.7Ω 2370 237Ω
R243 0.243Ω 2R43 2.43Ω 24R3 24.3Ω 2430 243Ω
R249 0.249Ω 2R49 2.49Ω 24R9 24.9Ω 2490 249Ω
R255 0.255Ω 2R55 2.55Ω 25R5 25.5Ω 2550 255Ω
R261 0.261Ω 2R61 2.61Ω 26R1 26.1Ω 2610 261Ω
R267 0.267Ω 2R67 2.67Ω 26R7 26.7Ω 2670 267Ω
R274 0.274Ω 2R74 2.74Ω 27R4 27.4Ω 2740 274Ω
0R28 0.28Ω 2R80 2.8Ω 28R0 28Ω 2800 280Ω
R287 0.287Ω 2R87 2.87Ω 28R7 28.7Ω 2870 287Ω
R294 0.294Ω 2R94 2.94Ω 29R4 29.4Ω 2940 294Ω
R301 0.301Ω 3R01 3.01Ω 30R1 30.1Ω 3010 301Ω
R309 0.309Ω 3R09 3.09Ω 30R9 30.9Ω 3090 309Ω
R316 0.316Ω 3R16 3.16Ω 31R6 31.6Ω 3160 316Ω
R324 0.324Ω 3R24 3.24Ω 32R4 32.4Ω 3240 324Ω
R332 0.332Ω 3R32 3.32Ω 33R2 33.2Ω 3320 332Ω
0R34 0.34Ω 3R40 3.4Ω 34R0 34Ω 3400 340Ω
R348 0.348Ω 3R48 3.48Ω 34R8 34.8Ω 3480 348Ω
R357 0.357Ω 3R57 3.57Ω 35R7 35.7Ω 3570 357Ω
R365 0.365Ω 3R65 3.65Ω 36R5 36.5Ω 3650 365Ω
R374 0.374Ω 3R74 3.74Ω 37R4 37.4Ω 3740 374Ω
R383 0.383Ω 3R83 3.83Ω 38R3 38.3Ω 3830 383Ω
R392 0.392Ω 3R92 3.92Ω 39R2 39.2Ω 3920 392Ω
R402 0.402Ω 4R02 4.02Ω 40R2 40.2Ω 4020 402Ω
R412 0.412Ω 4R12 4.12Ω 41R2 41.2Ω 4120 412Ω
R422 0.422Ω 4R22 4.22Ω 42R2 42.2Ω 4220 422Ω
R432 0.432Ω 4R32 4.32Ω 43R2 43.2Ω 4320 432Ω
R442 0.442Ω 4R42 4.42Ω 44R2 44.2Ω 4420 442Ω
R453 0.453Ω 4R53 4.53Ω 45R3 45.3Ω 4530 453Ω
R464 0.464Ω 4R64 4.64Ω 46R4 46.4Ω 4640 464Ω
R475 0.475Ω 4R75 4.75Ω 47R5 47.5Ω 4750 475Ω
R487 0.487Ω 4R87 4.87Ω 48R7 48.7Ω 4870 487Ω
R491 0.491Ω 4R91 4.91Ω 49R1 49.1Ω 4910 491Ω
R511 0.511Ω 5R11 5.11Ω 51R1 51.1Ω 5110 511Ω
R523 0.523Ω 5R23 5.23Ω 52R3 52.3Ω 5230 523Ω
R536 0.536Ω 5R36 5.36Ω 53R6 53.6Ω 5360 536Ω
R549 0.549Ω 5R49 5.49Ω 54R9 54.9Ω 5490 549Ω
R562 0.562Ω 5R62 5.62Ω 56R2 56.2Ω 5620 562Ω
R576 0.576Ω 5R76 5.76Ω 57R6 57.6Ω 5760 576Ω
0R59 0.59Ω 5R90 5.9Ω 59R0 59Ω 5900 590Ω
R604 0.604Ω 6R04 6.04Ω 60R4 60.4Ω 6040 604Ω
R619 0.619Ω 6R19 6.19Ω 61R9 61.9Ω 6190 619Ω
R634 0.634Ω 6R34 6.34Ω 63R4 63.4Ω 6340 634Ω
R649 0.649Ω 6R49 6.49Ω 64R9 64.9Ω 6490 649Ω
R665 0.665Ω 6R65 6.65Ω 66R5 66.5Ω 6650 665Ω
R681 0.681Ω 6R81 6.81Ω 68R1 68.1Ω 6810 681Ω
R698 0.698Ω 6R98 6.98Ω 69R8 69.8Ω 6980 698Ω
R715 0.715Ω 7R15 7.15Ω 71R5 71.5Ω 7150 715Ω
R732 0.732Ω 7R32 7.32Ω 73R2 73.2Ω 7320 732Ω
0R75 0.75Ω 7R50 7.5Ω 75R0 75Ω 7500 750Ω
R768 0.768Ω 7R68 7.68Ω 76R8 76.8Ω 7680 768Ω
R787 0.787Ω 7R87 7.87Ω 78R7 78.7Ω 7870 787Ω
R806 0.806Ω 8R06 8.06Ω 80R6 80.6Ω 8060 806Ω
R825 0.825Ω 8R25 8.25Ω 82R5 82.5Ω 8250 825Ω
R845 0.845Ω 8R45 8.45Ω 84R5 84.5Ω 8450 845Ω
R866 0.866Ω 8R66 8.66Ω 86R6 86.6Ω 8660 866Ω
R887 0.887Ω 8R87 8.87Ω 88R7 88.7Ω 8870 887Ω
R909 0.909Ω 9R09 9.09Ω 90R9 90.9Ω 9090 909Ω
R931 0.931Ω 9R31 9.31Ω 93R1 93.1Ω 9310 931Ω
R959 0.959Ω 9R59 9.59Ω 95R9 95.9Ω 9590 959Ω
R976 0.976Ω 9R76 9.76Ω 97R6 97.6Ω 9760 976Ω
 
Table 4 digit codes EIA-24
Code Value Code Value Code Value Code Value
1001 1kΩ 1002 10kΩ 1003 100kΩ 1004 1MΩ
1101 1.1kΩ 1102 11kΩ 1103 110kΩ 1104 1.1MΩ
1201 1.2kΩ 1202 12kΩ 1203 120kΩ 1204 1.2MΩ
1301 1.3kΩ 1302 13kΩ 1303 130kΩ 1304 1.3MΩ
1501 1.5kΩ 1502 15kΩ 1503 150kΩ 1504 1.5MΩ
1601 1.6kΩ 1602 16kΩ 1603 160kΩ 1604 1.6MΩ
1801 1.8kΩ 1802 18kΩ 1803 180kΩ 1804 1.8MΩ
2001 2kΩ 2002 20kΩ 2003 200kΩ 2004 2MΩ
2201 2.2kΩ 2202 22kΩ 2203 220kΩ 2204 2.2MΩ
2401 2.4kΩ 2402 24kΩ 2403 240kΩ 2404 2.4MΩ
2701 2.7kΩ 2702 27kΩ 2703 270kΩ 2704 2.7MΩ
3001 3kΩ 3002 30kΩ 3003 300kΩ 3004 3MΩ
3301 3.3kΩ 3302 33kΩ 3303 330kΩ 3304 3.3MΩ
3601 3.6kΩ 3602 36kΩ 3603 360kΩ 3604 3.6MΩ
3901 3.9kΩ 3902 39kΩ 3903 390kΩ 3904 3.9MΩ
4301 4.3kΩ 4302 43kΩ 4303 430kΩ 4304 4.3MΩ
4701 4.7kΩ 4702 47kΩ 4703 470kΩ 4704 4.7MΩ
5101 5.1kΩ 5102 51kΩ 5103 510kΩ 5104 5.1MΩ
5601 5.6kΩ 5602 56kΩ 5603 560kΩ 5604 5.6MΩ
6201 6.2kΩ 6202 62kΩ 6203 620kΩ 6204 6.2MΩ
6801 6.8kΩ 6802 68kΩ 6803 680kΩ 6804 6.8MΩ
7501 7.5kΩ 7502 75kΩ 7503 750kΩ 7504 7.5MΩ
8201 8.2kΩ 8202 82kΩ 8203 820kΩ 8194 8.2MΩ
9101 9.1kΩ 9102 91kΩ 9103 910kΩ 9104 9.1MΩ
Table of codes EIA-96
Code Value Code Value Code Value Code Value
01C 10kΩ 01D 100kΩ 01E 1MΩ 01F 10MΩ
02C 10.2kΩ 02D 102kΩ 02E 1.02MΩ 02F 10.2MΩ
03C 10.5kΩ 03D 105kΩ 03E 1.05MΩ 03F 10.5MΩ
04C 10.7kΩ 04D 107kΩ 04E 1.07MΩ 04F 10.7MΩ
05C 11kΩ 05D 110kΩ 05E 1.1MΩ 05F 11MΩ
06C 11.3kΩ 06D 113kΩ 06E 1.13MΩ 06F 11.3MΩ
07C 11.5kΩ 07D 115kΩ 07E 1.15MΩ 07F 11.5MΩ
08C 11.8kΩ 08D 118kΩ 08E 1.18MΩ 08F 11.8MΩ
09C 12.1kΩ 09D 121kΩ 09E 1.21MΩ 09F 12.1MΩ
10C 12.4kΩ 10D 124kΩ 10E 1.24MΩ 10F 12.4MΩ
11C 12.7kΩ 11D 127kΩ 11E 1.27MΩ 11F 12.7MΩ
12C 13kΩ 12D 130kΩ 12E 1.3MΩ 12F 13MΩ
13C 13.3kΩ 13D 133kΩ 13E 1.33MΩ 13F 13.3MΩ
14C 13.7kΩ 14D 137kΩ 14E 1.37MΩ 14F 13.7MΩ
15C 14kΩ 15D 140kΩ 15E 1.4MΩ 15F 14MΩ
16C 14.3kΩ 16D 143kΩ 16E 1.43MΩ 16F 14.3MΩ
17C 14.7kΩ 17D 147kΩ 17E 1.47MΩ 17F 14.7MΩ
18C 15kΩ 18D 150kΩ 18E 1.5MΩ 18F 15MΩ
19C 15.4kΩ 19D 154kΩ 19E 1.54MΩ 19F 15.4MΩ
20C 15.8kΩ 20D 158kΩ 20E 1.58MΩ 20F 15.8MΩ
21C 16.2kΩ 21D 162kΩ 21E 1.62MΩ 21F 16.2MΩ
22C 16.5kΩ 22D 165kΩ 22E 1.65MΩ 22F 16.5MΩ
23C 16.9kΩ 23D 169kΩ 23E 1.69MΩ 23F 16.9MΩ
24C 17.4kΩ 24D 174kΩ 24E 1.74MΩ 24F 17.4MΩ
25C 17.8kΩ 25D 178kΩ 25E 1.78MΩ 25F 17.8MΩ
26C 18.2kΩ 26D 182kΩ 26E 1.82MΩ 26F 18.2MΩ
27C 18.7kΩ 27D 187kΩ 27E 1.87MΩ 27F 18.7MΩ
28C 19.1kΩ 28D 191kΩ 28E 1.91MΩ 28F 19.1MΩ
29C 19.6kΩ 29D 196kΩ 29E 1.96MΩ 29F 19.6MΩ
30C 20kΩ 30D 200kΩ 30E 2MΩ 30F 20MΩ
31C 20.5kΩ 31D 205kΩ 31E 2.05MΩ 31F 20.5MΩ
32C 21kΩ 32D 210kΩ 32E 2.1MΩ 32F 21MΩ
33C 21.5kΩ 33D 215kΩ 33E 2.15MΩ 33F 21.5MΩ
34C 22.1kΩ 34D 221kΩ 34E 2.21MΩ 34F 22.1MΩ
35C 22.6kΩ 35D 226kΩ 35E 2.26MΩ 35F 22.6MΩ
36C 23.2kΩ 36D 232kΩ 36E 2.32MΩ 36F 23.2MΩ
37C 23.7kΩ 37D 237kΩ 37E 2.37MΩ 37F 23.7MΩ
38C 24.3kΩ 38D 243kΩ 38E 2.43MΩ 38F 24.3MΩ
39C 24.9kΩ 39D 249kΩ 39E 2.49MΩ 39F 24.9MΩ
40C 25.5kΩ 40D 255kΩ 40E 2.55MΩ 40F 25.5MΩ
41C 26.1kΩ 41D 261kΩ 41E 2.61MΩ 41F 26.1MΩ
42C 26.7kΩ 42D 267kΩ 42E 2.67MΩ 42F 26.7MΩ
43C 27.4kΩ 43D 274kΩ 43E 2.74MΩ 43F 27.4MΩ
44C 28kΩ 44D 280kΩ 44E 2.8MΩ 44F 28MΩ
45C 28.7kΩ 45D 287kΩ 45E 2.87MΩ 45F 28.7MΩ
46C 29.4kΩ 46D 294kΩ 46E 2.94MΩ 46F 29.4MΩ
47C 30.1kΩ 47D 301kΩ 47E 3.01MΩ 47F 30.1MΩ
48C 30.9kΩ 48D 309kΩ 48E 3.09MΩ 48F 30.9MΩ
49C 31.6kΩ 49D 316kΩ 49E 3.16MΩ 49F 31.6MΩ
50C 32.4kΩ 50D 324kΩ 50E 3.24MΩ 50F 32.4MΩ
51C 33.2kΩ 51D 332kΩ 51E 3.32MΩ 51F 33.2MΩ
52C 34kΩ 52D 340kΩ 52E 3.4MΩ 52F 34MΩ
53C 34.8kΩ 53D 348kΩ 53E 3.48MΩ 53F 34.8MΩ
54C 35.7kΩ 54D 357kΩ 54E 3.57MΩ 54F 35.7MΩ
55C 36.5kΩ 55D 365kΩ 55E 3.65MΩ 55F 36.5MΩ
56C 37.4kΩ 56D 374kΩ 56E 3.74MΩ 56F 37.4MΩ
57C 38.3kΩ 57D 383kΩ 57E 3.83MΩ 57F 38.3MΩ
58C 39.2kΩ 58D 392kΩ 58E 3.92MΩ 58F 39.2MΩ
59C 40.2kΩ 59D 402kΩ 59E 4.02MΩ 59F 40.2MΩ
60C 41.2kΩ 60D 412kΩ 60E 4.12MΩ 60F 41.2MΩ
61C 42.2kΩ 61D 422kΩ 61E 4.22MΩ 61F 42.2MΩ
62C 43.2kΩ 62D 432kΩ 62E 4.32MΩ 62F 43.2MΩ
63C 44.2kΩ 63D 442kΩ 63E 4.42MΩ 63F 44.2MΩ
64C 45.3kΩ 64D 453kΩ 64E 4.53MΩ 64F 45.3MΩ
65C 46.4kΩ 65D 464kΩ 65E 4.64MΩ 65F 46.4MΩ
66C 47.5kΩ 66D 475kΩ 66E 4.75MΩ 66F 47.5MΩ
67C 48.7kΩ 67D 487kΩ 67E 4.87MΩ 67F 48.7MΩ
68C 49.1kΩ 68D 491kΩ 68E 4.91MΩ 68F 49.1MΩ
69C 51.1kΩ 69D 511kΩ 69E 5.11MΩ 69F 51.1MΩ
70C 52.3kΩ 70D 523kΩ 70E 5.23MΩ 70F 52.3MΩ
71C 53.6kΩ 71D 536kΩ 71E 5.36MΩ 71F 53.6MΩ
72C 54.9kΩ 72D 549kΩ 72E 5.49MΩ 72F 54.9MΩ
73C 56.2kΩ 73D 562kΩ 73E 5.62MΩ 73F 56.2MΩ
74C 57.6kΩ 74D 576kΩ 74E 5.76MΩ 74F 57.6MΩ
75C 59kΩ 75D 590kΩ 75E 5.9MΩ 75F 59MΩ
76C 60.4kΩ 76D 604kΩ 76E 6.04MΩ 76F 60.4MΩ
77C 61.9kΩ 77D 619kΩ 77E 6.19MΩ 77F 61.9MΩ
78C 63.4kΩ 78D 634kΩ 78E 6.34MΩ 78F 63.4MΩ
79C 64.9kΩ 79D 649kΩ 79E 6.49MΩ 79F 64.9MΩ
80C 66.5kΩ 80D 665kΩ 80E 6.65MΩ 80F 66.5MΩ
81C 68.1kΩ 81D 681kΩ 81E 6.81MΩ 81F 68.1MΩ
82C 69.8kΩ 82D 698kΩ 82E 6.98MΩ 82F 69.8MΩ
83C 71.5kΩ 83D 715kΩ 83E 7.15MΩ 83F 71.5MΩ
84C 73.2kΩ 84D 732kΩ 84E 7.32MΩ 84F 73.2MΩ
85C 75kΩ 85D 750kΩ 85E 7.5MΩ 85F 75MΩ
86C 76.8kΩ 86D 768kΩ 86E 7.68MΩ 86F 76.8MΩ
87C 78.7kΩ 87D 787kΩ 87E 7.87MΩ 87F 78.7MΩ
88C 80.6kΩ 88D 806kΩ 88E 8.06MΩ 88F 80.6MΩ
89C 82.5kΩ 89D 825kΩ 89E 8.25MΩ 89F 82.5MΩ
90C 84.5kΩ 90D 845kΩ 90E 8.45MΩ 90F 84.5MΩ
91C 86.6kΩ 91D 866kΩ 91E 8.66MΩ 91F 86.6MΩ
92C 88.7kΩ 92D 887kΩ 92E 8.87MΩ 92F 88.7MΩ
93C 90.9kΩ 93D 909kΩ 93E 9.09MΩ 93F 90.9MΩ
94C 93.1kΩ 94D 931kΩ 94E 9.31MΩ 94F 93.1MΩ
95C 95.9kΩ 95D 959kΩ 95E 9.59MΩ 95F 95.9MΩ
96C 97.6kΩ 96D 976kΩ 96E 9.76MΩ 96F 97.6MΩ
Table of codes 3 digits
Code Value Code Value Code Value Code Value
102 1kΩ 103 10kΩ 104 100kΩ 105 1MΩ
112 1.1kΩ 113 11kΩ 114 110kΩ 115 1.1MΩ
122 1.2kΩ 123 12kΩ 124 120kΩ 125 1.2MΩ
132 1.3kΩ 133 13kΩ 134 130kΩ 135 1.3MΩ
152 1.5kΩ 153 15kΩ 154 150kΩ 155 1.5MΩ
162 1.6kΩ 163 16kΩ 164 160kΩ 165 1.6MΩ
182 1.8kΩ 183 18kΩ 184 180kΩ 185 1.8MΩ
202 2kΩ 203 20kΩ 204 200kΩ 205 2MΩ
222 2.2kΩ 223 22kΩ 224 220kΩ 225 2.2MΩ
242 2.4kΩ 243 24kΩ 244 240kΩ 245 2.4MΩ
272 2.7kΩ 273 27kΩ 274 270kΩ 275 2.7MΩ
302 3kΩ 303 30kΩ 304 300kΩ 305 3MΩ
332 3.3kΩ 333 33kΩ 334 330kΩ 335 3.3MΩ
362 3.6kΩ 363 36kΩ 364 360kΩ 365 3.6MΩ
392 3.9kΩ 393 39kΩ 394 390kΩ 395 3.9MΩ
432 4.3kΩ 433 43kΩ 434 430kΩ 435 4.3MΩ
472 4.7kΩ 473 47kΩ 474 470kΩ 475 4.7MΩ
512 5.1kΩ 513 51kΩ 514 510kΩ 515 5.1MΩ
562 5.6kΩ 563 56kΩ 564 560kΩ 565 5.6MΩ
622 6.2kΩ 623 62kΩ 624 620kΩ 625 6.2MΩ
682 6.8kΩ 683 68kΩ 684 680kΩ 685 6.8MΩ
752 7.5kΩ 753 75kΩ 754 750kΩ 755 7.5MΩ
822 8.2kΩ 823 82kΩ 824 820kΩ 815 8.2MΩ
912 9.1kΩ 913 91kΩ 914 910kΩ 915 9.1MΩ
Table 4-digit SMD resistors (E96 series)
Code Value Code Value Code Value Code Value
1001 1kΩ 1002 10kΩ 1003 100kΩ 1004 1MΩ
1011 1.02kΩ 1022 10.2kΩ 1023 102kΩ 1014 1.02MΩ
1051 1.05kΩ 1052 10.5kΩ 1053 105kΩ 1054 1.05MΩ
1071 1.07kΩ 1072 10.7kΩ 1073 107kΩ 1074 1.07MΩ
1101 1.1kΩ 1102 11kΩ 1103 110kΩ 1104 1.1MΩ
1131 1.13kΩ 1132 11.3kΩ 1133 113kΩ 1134 1.13MΩ
1151 1.15kΩ 1152 11.5kΩ 1153 115kΩ 1154 1.15MΩ
1181 1.18kΩ 1182 11.8kΩ 1183 118kΩ 1184 1.18MΩ
1211 1.21kΩ 1212 12.1kΩ 1213 121kΩ 1214 1.21MΩ
1241 1.24kΩ 1242 12.4kΩ 1243 124kΩ 1244 1.24MΩ
1271 1.27kΩ 1272 12.7kΩ 1273 127kΩ 1274 1.27MΩ
1301 1.3kΩ 1302 13kΩ 1303 130kΩ 1304 1.3MΩ
1331 1.33kΩ 1332 13.3kΩ 1333 133kΩ 1334 1.33MΩ
1371 1.37kΩ 1372 13.7kΩ 1373 137kΩ 1374 1.37MΩ
1401 1.4kΩ 1402 14kΩ 1403 140kΩ 1404 1.4MΩ
1421 1.43kΩ 1422 14.3kΩ 1433 143kΩ 1424 1.43MΩ
1471 1.47kΩ 1472 14.7kΩ 1473 147kΩ 1474 1.47MΩ
1501 1.5kΩ 1502 15kΩ 1503 150kΩ 1504 1.5MΩ
1541 1.54kΩ 1542 15.4kΩ 1543 154kΩ 1544 1.54MΩ
1581 1.58kΩ 1582 15.8kΩ 1583 158kΩ 1584 1.58MΩ
1621 1.62kΩ 1622 16.2kΩ 1623 162kΩ 1624 1.62MΩ
1651 1.65kΩ 1652 16.5kΩ 1653 165kΩ 1654 1.65MΩ
1691 1.69kΩ 1692 16.9kΩ 1693 169kΩ 1694 1.69MΩ
1731 1.74kΩ 1742 17.4kΩ 1743 174kΩ 1734 1.74MΩ
1781 1.78kΩ 1782 17.8kΩ 1783 178kΩ 1784 1.78MΩ
1821 1.82kΩ 1822 18.2kΩ 1823 182kΩ 1824 1.82MΩ
1871 1.87kΩ 1872 18.7kΩ 1873 187kΩ 1874 1.87MΩ
1911 1.91kΩ 1912 19.1kΩ 1913 191kΩ 1914 1.91MΩ
1961 1.96kΩ 1962 19.6kΩ 1963 196kΩ 1964 1.96MΩ
2001 2kΩ 2002 20kΩ 2003 200kΩ 2004 2MΩ
2051 2.05kΩ 2052 20.5kΩ 2053 205kΩ 2044 2.05MΩ
2101 2.1kΩ 2102 21kΩ 2103 210kΩ 2104 2.1MΩ
2151 2.15kΩ 2152 21.5kΩ 2153 215kΩ 2154 2.15MΩ
2211 2.21kΩ 2212 22.1kΩ 2213 221kΩ 2214 2.21MΩ
2261 2.26kΩ 2262 22.6kΩ 2263 226kΩ 2264 2.26MΩ
2321 2.32kΩ 2322 23.2kΩ 2323 232kΩ 2324 2.32MΩ
2371 2.37kΩ 2372 23.7kΩ 2373 237kΩ 2374 2.37MΩ
2431 2.43kΩ 2432 24.3kΩ 2433 243kΩ 2434 2.43MΩ
2491 2.49kΩ 2492 24.9kΩ 2493 249kΩ 2494 2.49MΩ
2551 2.55kΩ 2552 25.5kΩ 2553 255kΩ 2554 2.55MΩ
2611 2.61kΩ 2612 26.1kΩ 2613 261kΩ 2614 2.61MΩ
2671 2.67kΩ 2672 26.7kΩ 2673 267kΩ 2674 2.67MΩ
2741 2.74kΩ 2742 27.4kΩ 2743 274kΩ 2744 2.74MΩ
2801 2.8kΩ 2802 28kΩ 2803 280kΩ 2804 2.8MΩ
2871 2.87kΩ 2862 28.7kΩ 2873 287kΩ 2874 2.87MΩ
2941 2.94kΩ 2942 29.4kΩ 2943 294kΩ 2944 2.94MΩ
3011 3.01kΩ 3012 30.1kΩ 3013 301kΩ 3014 3.01MΩ
3091 3.09kΩ 3092 30.9kΩ 3093 309kΩ 3094 3.09MΩ
3161 3.16kΩ 3162 31.6kΩ 3163 316kΩ 3164 3.16MΩ
3241 3.24kΩ 3242 32.4kΩ 3243 324kΩ 3244 3.24MΩ
3321 3.32kΩ 3322 33.2kΩ 3323 332kΩ 3324 3.32MΩ
3401 3.4kΩ 3402 34kΩ 3403 340kΩ 3404 3.4MΩ
3471 3.48kΩ 3482 34.8kΩ 3483 348kΩ 3474 3.48MΩ
3571 3.57kΩ 3572 35.7kΩ 3573 357kΩ 3574 3.57MΩ
3651 3.65kΩ 3652 36.5kΩ 3653 365kΩ 3654 3.65MΩ
3741 3.74kΩ 3742 37.4kΩ 3743 374kΩ 3744 3.74MΩ
3831 3.83kΩ 3832 38.3kΩ 3833 383kΩ 3834 3.83MΩ
3921 3.92kΩ 3922 39.2kΩ 3923 392kΩ 3924 3.92MΩ
4021 4.02kΩ 4022 40.2kΩ 4023 402kΩ 4024 4.02MΩ
4121 4.12kΩ 4122 41.2kΩ 4123 412kΩ 4124 4.12MΩ
4221 4.22kΩ 4222 42.2kΩ 4223 422kΩ 4224 4.22MΩ
4321 4.32kΩ 4322 43.2kΩ 4323 432kΩ 4324 4.32MΩ
4421 4.42kΩ 4422 44.2kΩ 4423 442kΩ 4424 4.42MΩ
4531 4.53kΩ 4532 45.3kΩ 4533 453kΩ 4534 4.53MΩ
4641 4.64kΩ 4642 46.4kΩ 4643 464kΩ 4644 4.64MΩ
4751 4.75kΩ 4752 47.5kΩ 4753 475kΩ 4754 4.75MΩ
4871 4.87kΩ 4872 48.7kΩ 4873 487kΩ 4874 4.87MΩ
4911 4.91kΩ 4912 49.1kΩ 4913 491kΩ 4914 4.91MΩ
5111 5.11kΩ 5112 51.1kΩ 5113 511kΩ 5114 5.11MΩ
5231 5.23kΩ 5232 52.3kΩ 5233 523kΩ 5234 5.23MΩ
5361 5.36kΩ 5362 53.6kΩ 5363 536kΩ 5364 5.36MΩ
5491 5.49kΩ 5492 54.9kΩ 5493 549kΩ 5494 5.49MΩ
5621 5.62kΩ 5622 56.2kΩ 5623 562kΩ 5624 5.62MΩ
5761 5.76kΩ 5752 57.6kΩ 5763 576kΩ 5764 5.76MΩ
5901 5.9kΩ 5902 59kΩ 5903 590kΩ 5904 5.9MΩ
6041 6.04kΩ 6042 60.4kΩ 6043 604kΩ 6044 6.04MΩ
6191 6.19kΩ 6192 61.9kΩ 6193 619kΩ 6194 6.19MΩ
6341 6.34kΩ 6342 63.4kΩ 6343 634kΩ 6344 6.34MΩ
6491 6.49kΩ 6492 64.9kΩ 6493 649kΩ 6494 6.49MΩ
6651 6.65kΩ 6652 66.5kΩ 6653 665kΩ 6654 6.65MΩ
6811 6.81kΩ 6812 68.1kΩ 6813 681kΩ 6814 6.81MΩ
6971 6.98kΩ 6982 69.8kΩ 6983 698kΩ 6984 6.98MΩ
7151 7.15kΩ 7152 71.5kΩ 7153 715kΩ 7154 7.15MΩ
7321 7.32kΩ 7322 73.2kΩ 7323 732kΩ 7324 7.32MΩ
7501 7.5kΩ 7502 75kΩ 7503 750kΩ 7504 7.5MΩ
7681 7.68kΩ 7682 76.8kΩ 7683 768kΩ 7684 7.68MΩ
7871 7.87kΩ 7872 78.7kΩ 7873 787kΩ 7874 7.87MΩ
8061 8.06kΩ 8062 80.6kΩ 8063 806kΩ 8064 8.06MΩ
8251 8.25kΩ 8252 82.5kΩ 8253 825kΩ 8254 8.25MΩ
8451 8.45kΩ 8452 84.5kΩ 8453 845kΩ 8454 8.45MΩ
8661 8.66kΩ 8662 86.6kΩ 8663 866kΩ 8664 8.66MΩ
8871 8.87kΩ 8872 88.7kΩ 8873 887kΩ 8874 8.87MΩ
9091 9.09kΩ 9092 90.9kΩ 9093 909kΩ 9094 9.09MΩ
9311 9.31kΩ 9312 93.1kΩ 9313 931kΩ 9314 9.31MΩ
9591 9.59kΩ 9592 95.9kΩ 9593 959kΩ 9594 9.59MΩ
9761 9.76kΩ 9762 97.6kΩ 9763 976kΩ 9764 9.76MΩ

Letter of selection
type of conductors mode of installation letter
conductors and multicore cables under conduit, shaped; or chute, into apparent or embedded B
vacuum of construction, false ceiling
under gutter, mouldings, plinths, casings
into apparent against wall or ceiling C
on not perforated shelf or cable shelf
multicore cables on scales, corbels, cable shelf perforated E
fixed into apparent, spaced wall
suspended cables
cables monoconducteurs on scales, corbels, cable shelf perforated F
fixed into apparent, spaced wall
càbles suspended
Factors of correction K1 and K4 (influence of the mode of installation) ]K1_
letter case of installation K1
B,C cables in sections embedded directly in materials thermically insulating 0,70
conduit embedded in materials thermically insulating 0,77
multicore cables 0,90
vacuums of construction and gutters 0,95
C pose under ceiling 0,95
B,C,E,F other cases 1,00
K4
case of installation K4
pose under shaped sleeves, conduits or 0,8
other cases 1,0
Factors of correction K2 and K5 (mutual influence of the circuits ]K2_
letter provision of the jointed cables many circuits or of multicore cables
1 2 3 4 5 6 7 8 9 12 16 20
B,C embedded or embedded in walls 1 0,8 0,7 0,65 0,6 0,57 0,54 0,52 0,5 0,45 0,41 0,38
C simple layer on walls or floors or not perforated shelves 1 0,85 0,79 0,75 0,73 0,72 0,72 0,71 0,7 0,7    
simple layer with the ceiling 0,95 0,81 0,72 0,68 0,66 0,64 0,63 0,62 0,61 0,61    
E,F simple layer on perforated horizontal shelves or vertical shelves 1 0,88 0,82 0,77 0,75 0,73 0,73 0,72 0,72 0,72    
simple layer on scales or corbels 1 0,87 0,82 0,8 0,8 0,79 0,79 0,78 0,78 0,78    
K5
many circuits 1 2 3 4 5 6 7 8 9 12 16 20
K5 1,00 0,80 0,70 0,65 0,60 0,57 0,54 0,52 0,50 0,45 0,41 0,38
When the cables are laid out in several layers, it is necessary to apply in more one factor of correction:
many layers 2 3 4 5
factor of correction 0,80 0,73 0,70 0,70
Factors of correction K3 and K7 (influence of the temperature) ]K3_
ambient temperature (°C) insulation
elastomer (rubber) vinyl polychloride (PVC) réticulé polyethylene (PR) butyl, ethylene, propylene (EPR)
10 1,29 1,22 1,15
15 1,22 1,17 1,12
20 1,15 1,12 1,08
25 1,07 1,07 1,04
30 1,00 1,00 1,00
35 0,93 0,93 0,96
40 0,82 0,87 0,91
45 0,71 0,79 0,87
50 0,58 0,71 0,82
55   0,61 0,76
60   0,50 0,71
K7
temperature of the ground (°C) insulation
vinyl polychloride (PVC) réticulé polyethylene; (PR) ethylene propylene (EPR)
10 1,10 1,07
15 1,05 1,04
20 1,00 1,00
25 0,95 0,96
30 0,89 0,93
35 0,84 0,89
40 0,77 0,85
45 0,71 0,80
50 0,63 0,76
55 0,55 0,71
60 0,45 0,65
Factors of correction K6 (influence of the nature of the ground) ]K6_
nature of the ground K6
very wet 1,21
wet 1,13
normal 1,05
dryness 1,00
very dry 0,86
Determination of the minimal section of a not buried line
Iz’ insulator and many conductors charged (3 or 2)
rubber or PVC butyl or PR or ethylene PR
letter of selection B PVC3 PVC2   PR3   PR2      
C   PVC3   PVC2 PR3   PR2    
E     PVC3   PVC2 PR3   PR2  
F       PVC3   PVC2 PR3   PR2
section coppers(mm²) 1,5 15,5 17,5 18,5 19,5 22 23 24 26  
2,5 21 24 25 27 30 31 33 36  
4 28 32 34 36 40 42 45 49  
6 36 41 43 48 51 54 58 63  
10 50 57 60 63 70 75 80 86  
16 68 76 80 85 94 100 107 115  
25 89 96 101 112 119 127 138 149 161
35 110 119 126 138 147 158 169 185 200
50 134 144 153 168 179 192 207 225 242
70 171 184 196 213 229 246 268 289 310
95 207 223 238 258 278 298 328 352 377
120 239 259 276 299 322 346 382 410 437
150   299 319 344 371 395 441 473 504
185   341 364 392 424 450 506 542 575
240   403 430 461 500 538 599 641 679
300   464 497 530 576 621 693 741 783
400         656 754 825   940
500         749 868 946   1083
630         855 1005 1088   1254
section aluminium(mm²) 2,5 16,5 18,5 19,5 21 23 25 26 28  
4 22 25 26 28 31 33 35 38  
6 28 32 33 36 39 43 45 49  
10 39 44 46 49 54 59 62 67  
16 53 59 61 66 73 79 84 91  
25 70 73 78 83 90 98 101 108 121
35 86 90 96 103 112 122 126 135 150
50 104 110 117 125 136 149 154 164 184
70 133 140 150 160 174 192 198 211 237
95 161 170 183 195 211 235 241 257 289
120 186 197 212 226 245 273 280 300 337
150   227 245 261 283 316 324 346 389
185   259 280 298 323 363 371 397 447
240   305 330 352 382 430 439 470 530
300   351 381 406 440 497 508 543 613
400         526 600 663   740
500         610 694 770   856
630         711 808 899   996
Determination of the minimal section of a ground pipe
Iz’ Insulator and many conductors charged
Rubber or PVC Butyl or PR or ethylene PR
3 conductors 2 conductors 3 conductors 2 conductors
section coppers (mm²) 1,5 26 32 31 37
2,5 34 42 41 48
4 44 54 53 63
6 56 67 66 80
10 74 90 87 104
16 96 116 113 136
25 123 148 144 173
35 147 178 174 208
50 174 211 206 247
70 216 261 254 304
95 256 308 301 360
120 290 351 343 410
150 328 397 387 463
185 367 445 434 518
240 424 514 501 598
300 480 581 565 677
section aluminium(mm²) 10 57 68 67 80
16 74 88 87 104
25 94 114 111 133
35 114 137 134 160
50 134 161 160 188
70 167 200 197 233
95 197 237 234 275
120 224 270 266 314
150 254 304 300 359
185 285 343 337 398
240 328 396 388 458
300 371 447 440 520

first chiffre=protection against the solid bodies
IP  
0   no protection
1 50mm to protect from the solid bodies of more than 50 mm
2 12mm to protect from the solid bodies of more than 12 mm
3 2.5mm to protect from the solid bodies of more than 2.5 mm
4 1mm to protect from the solid bodies of more than 1 mm
5 dust to protect from dust, not of harmful deposit
6 dust completely to protect from dust
second chiffre=protection against the penetrations of liquids
IP  
0   no protection
1 drip of water protected against the vertical water drops
2 drip of water protected against the water drops with 15° of the vertical one
3 rainwater protected against rainwater 60° the vertical one has
4 water protected against projections from water of any directions
5 water protected against water projections lance of any directions has
6 big wave protected against projections comparable to big waves
7 water protected against the effects of the immersion
8 water protected against the effects of the immersion prolonged under conditions specified
code IK shock protection mechanics
code IK energy of shock
00 not protected
01 0.15 joules
02 0.2 joules
03 0.35 joules
04 0.5 joules
05 0.7 joules
06 1 joules
07 2 joules
08 5 joules
09 10 joules
10 20 joules
additional letter, protection of the people against the dangerous accesses
With protected against the contacts from the back of the hand
B protected against the access from the finger
C protected against the access from tools of 2.5mm
D protected against the access from a tool of 1 mm
H hardware high voltage
M movement during tests with water
S stationary during tests with water
W bad weather
execution time customer :
runtime server : 1.513 seconds