Capacitor Code Table

Published: November 5th 2009. Updated: December 27th 2020.

European capacitor material codes

FKC

Metal foil and Polycarbonate dielectric film. See MKC for more details.

FKP

Metal foil and Polypropylene dielectric film. See MKP for more details.

MKC

Metalized Polycarbonate foil. Extremely temperature stable with less than 1% capacitance tolerance between -55ºC to +125ºC. Small size, high Q and capacitance stability make them ideally suited to filter network and other low-loss high frequency applications.

MKI / PPS

Metalized Polyphenylene sulphide foil. Extremely temperature stable with less than 1% capacitance tolerance between -55ºC to +125ºC. Small size, high Q and capacitance stability make them ideally suited to filter network and other low-loss high frequency applications.

MKP / PP / Polypropylene

Metallized Polypropylene foil. Known as power film capacitors. Very Low ESR, high stability and can found in 1% tolerance versions and can operate at temperatures up to 110°C. Suitable for high power AC circuits, circuits with high peak currents, high frequency resonant circuits, precision timing circuits, switch mode power supplies, sample and hold circuits, high frequency pulse discharge circuits and energy storage circuits. High internal resistance results in low levels of self discharge.

MKS / PS / Polystyrene

Metal foil and Polystyrene dielectric film. A metalized version was unsuccessful due to the low melting point of the dielectric. Suitable for precision-tuned circuits due to the extreme stability in the 0°C thru +50°C range and it has long-term stability. The dielectric has a maximum operating temperature of +85°C. It will melt at +100°C.

MKT / PET / Mylar / Polyester

Metalized polyester foil. Known as Mylar, Polyester or Polyethylene terephthalate PET capacitors. Low ESR and can operate at temperatures up to 125°C, without much voltage derating. Suitable to be used for high frequency filtering, outdoor applications where moisture can be a problem, high voltage or current peaks in circuits and coupling and de-coupling circuits.

Decoding capacitor codes

Looking at our capacitor we will see its marked 474J, this should be read as follows, 47 times the value that can be found in Table 1 corresponding to the 3rd number, in this case 10000. 47 * 10000 = 470000 pF = 470 nF = 0.47 uF with the J meaning a 5% tolerance. A second letter will be a temperature coefficient if its present. Judging by a capacitors size and type, you will quickly learn to determine if the value on the capacitor is given in pF, nF or uF.

If a capacitor is f.ex. marked 2A474J, the capacitance is decoded as described above, the two first signs is the voltage rating and can be decoded from table 2 here below. 2A is 100VDC rating according to the EIA standard.

Some capacitors are only marked 0.1 or 0.01, mostly in these cases the values are given in uF.

Some small capacitance capacitors can be marked with a R between numbers, f.ex. 3R9 where R is a indicator of values below 10pF and have nothing to do with resistance. 3R9 would be 3.9pF.

Table 1 – Capacitor codes with letters and tolerances

3rd numberMultiply withLetterTolerance
01D0.5pF
110F1%
2100G2%
31,000H3%
410,000J5%
5100,000K10%
61,000,000M20%
7Not usedM20%
80.01P+100%/-0%
90.1Z+80%/-20%

Table 2A – Electronic Industries Alliance (EIA) – DC voltage code table

0E = 2.5 VDC2A = 100 VDC3A = 1 kVDC
0G = 4.0 VDC2Q = 110 VDC3L = 1.2 kVDC
0L = 5.5 VDC2B = 125 VDC3B = 1.25 kVDC
0J = 6.3 VDC2C = 160 VDC3N = 1.5 kVDC
1A = 10 VDC2Z = 180 VDC3C = 1.6 kVDC
1C = 16 VDC2D = 200 VDC3D = 2 kVDC
1D = 20 VDC2P = 220 VDC3E = 2.5 kVDC
1E = 25 VDC2E = 250 VDC3F = 3 kVDC
1V = 35 VDC2F = 315 VDC3G = 4 kVDC
1G = 40 VDC2V = 350 VDC3H = 5 kVDC
1H = 50 VDC2G = 400 VDC3I = 6 kVDC
1J = 63 VDC2W = 450 VDC3J = 6.3 kVDC
1M = 70 VDC2J = 630 VDC3U = 7.5 kVDC
1U = 75 VDC2I = 650 VDC3K = 8 kVDC
1K = 80 VDC2K = 800 VDC4A = 10 kVDC
Electronic Industries Alliance (EIA) – DC voltage code table

Table 2B – Electronic Industries Alliance (EIA) – AC voltage code table

2Q = 125 VAC2T = 250 VAC2S = 275 VAC
2X = 280 VAC2F = 300 VACI0 = 305 VAC
L0 = 350 VAC2Y = 400 VACP0 = 440 VAC
Q0 = 450 VACV0 = 630 VAC 
Electronic Industries Alliance (EIA) – AC voltage code table

Here is a list of common capacitors and a scale between the different grades of the Farad SI unit.

Table 3 – Capacitor code table

pico-farad
(pF)
nano-farad
(nF)
mikro-farad
(mF, uF or mfd)
Capacitor code
1 pF0.001 nF0.000001 uF010
1.5 pF0.0015 nF0.0000015 uF1R5
2.2 pF0.0022 nF0.0000022 uF2R2
3.3 pF0.0033 nF0.0000033 uF3R3
3.9 pF0.0039 nF0.0000039 uF3R9
4.7 pF0.0047 nF0.0000047 uF4R7
5.6 pF0.0056 nF0.0000056 uF5R6
6.8 pF0.0068 nF0.0000068 uF6R8
8.2 pF0.0082 nF0.0000082 uF8R2
10 pF0.01 nF0.00001 uF100
15 pF0.015 nF0.000015 uF150
22 pF0.022 nF0.000022 uF220
33 pF0.033 nF0.000033 uF330
47 pF0.047 nF0.000047 uF470
56 pF0.056 nF0.000056 uF560
68 pF0.068 nF0.000068 uF680
82 pF0.082 nF0.000082 uF820
100 pF0.1 nF0.0001 uF101
120 pF0.12 nF0.00012 uF121
130 pF0.13 nF0.00013 uF131
150 pF0.15 nF0.00015 uF151
180 pF0.18 nF0.00018 uF181
220 pF0.22 nF0.00022 uF221
330 pF0.33 nF0.00033 uF331
470 pF0.47 nF0.00047 uF471
560 pF0.56 nF0.00056 uF561
680 pF0.68 nF0.00068 uF681
750 pF0.75 nF0.00075 uF751
820 pF0.82 nF0.00082 uF821
1000 pF1 / 1n / 1 nF0.001 uF102
1500 pF1.5 / 1n5 / 1.5 nF0.0015 uF152
2000 pF2 / 2n / 2 nF0.002 uF202
2200 pF2.2 / 2n2 / 2.2 nF0.0022 uF222
3300 pF3.3 / 3n3 / 3.3 nF0.0033 uF332
4700 pF4.7 / 4n7 / 4.7 nF0.0047 uF472
5000 pF5 / 5n / 5 nF0.005 uF502
5600 pF5.6 / 5n6 / 5.6 nF0.0056 uF562
6800 pF6.8 / 6n8 / 6.8 nF0.0068 uF682
10000 pF10 / 10n / 10 nF0.01 uF103
15000 pF15 / 15n / 15 nF0.015 uF153
22000 pF22 / 22n / 22 nF0.022 uF223
33000 pF33 / 33n / 33 nF0.033 uF333
47000 pF47 / 47n / 47 nF0.047 uF473
68000 pF68 / 68n / 68 nF0.068 uF683
100000 pF100 / 100n / 100 nF0.1 uF104
150000 pF150 / 150n / 150 nF0.15 uF154
200000 pF200 / 200n / 200 nF0.20 uF204
220000 pF220 / 220n / 220 nF0.22 uF224
330000 pF330 / 330n / 330nF0.33 uF334
470000 pF470 / 470n / 470nF0.47 uF474
680000 pF680 nF0.68 uF684
1000000 pF1000 nF1.0 uF105
1500000 pF1500 nF1.5 uF155
2000000 pF2000 nF2.0 uF205
2200000 pF2200 nF2.2 uF225
3300000 pF3300 nF3.3 uF335
4700000 pF4700 nF4.7 uF475
6800000 pF6800 nF6.8 uF685
10000000 pF10000 nF10 uF106
15000000 pF15000 nF15 uF156
20000000 pF20000 nF20 uF206
22000000 pF22000 nF22 uF226
33000000 pF33000 nF33 uF336
47000000 pF47000 nF47 uF476
68000000 pF68000 nF68 uF686
100000000 pF100000 nF100 uF107
330000000 pF330000 nF330 uF337
470000000 pF470000 nF470 uF477
680000000 pF680000 nF680 uF687
1000000000 pF1000000 nF1000 uF108
Capacitor code table

I hope you found all this information helpful. Please leave a comment with picture for help to identify a capacitor.