# Capacitor number code

The post “capacitor number code” lists Non Polarized capacitors number codes with their values in Pico Farad (pF), Nano Farad (nF), and Micro Farad (µF) respectively. Also, it teaches you how to calculate the value by yourself for knowledge sake. This is because you may not be close or in position of the number codes and values of the capacitors table which I provide below. Beside, as an Engineer concern you should be able to calculate this type of capacitors’ values.

First of all, I will teach you how to calculate the values of non polarized capacitors which they only have number codes printed on them. The number codes on these capacitors are not their values don’t mistaken the codes with its real value. Why do I need to know how to calculate the value? Is that your question? I have stated the reason why you should above. It is very paramount for an Electrical and Electronics Engineer to have the knowledge of calculating non polarized capacitors value. Please, I recommend you learn this!

OK! Let’s start learning how to now!

###### How to calculate value of capacitor number code

These are the logics

• The 1st number is the 1st digit
• The 2nd number is the 2nd digit
• The 3rd number is the number of the zeros to give the capacitance in Pico Farad (pF).

For example, to read the value of the capacitor below The 1st number is 1 which is the 1st digit, 2nd number is 0 which is the 2nd digit, and the 3rd number is 4 which means 4zeros (0000)

Therefore we write; 100000pF = 100nF = 0.1µF

What if the number on the capacitor is 102? What is its actual value?

Thus, you will solve it this way: The first digit is “1” the second digit is “0” and the third digit which is the number of zeros is “2”. Therefore; we write “10” (for the first and second digit). Placing the figure of the third digit which is the number of zeros we finally have; 1000 which is in Pico Farad (1000pF) = 1nF = 0.001µF.

Note that; some of the capacitors will have a number and a decimal point example 1.2, 2.2, 4.4, etc. Also, some will have the numbers of Tens like 15, 20, etc. When you look very carefully at the top of these capacitors, you will notice that it is shaded black. This indicates that the value is straight away in Pico Farad (pF). Thus, for the ones above; 1.2 would be 1.2pF, 2.2 means 2.2pF, 15pF, and 20pF respectively.

Conversion of capacitance

It is also important to know how to convert capacitance from one unit to another different unit. So, in general below are the prefix, symbol, and multiple by respectively of most commonly used capacitor units.

Prefix             Symbol          Multiply by

Pico                p                      10-12 (0.000000000001)

Nano              n                      10-9 (0.000000001)

Micro             µ                      10-6 (0.000001)

To make things simple, 1µF = 1,000nF =1,000,000pF

###### Example1

Convert 10pF to nF

From the tip N0.1, we will divide it by 1000. Thus; 10/1000= 0.01nF

###### Example2

Convert 22nF to µF

22/1000 = 0.022µF

###### Example3

What is the value of 0.15µF in pF?

0.15 X 1,000,000 = 150,000pF

With the tips above, you can convert unit capacitance to different units.

However, you might come across of some capacitors with number codes followed by an English alphabet or letter which do not mean units. Letters on the capacitor indicate its tolerance and sometimes company’s series.

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The table below is the Capacitor number code and their values in pF, nF, and µF respectively.

 Capacitance Code N0 Pico Farad (pF) Nano Farad (nF) Micro Farad (µF) 102 1000 1 or 1n 0.001 152 1500 1.5 0r 1n5 0.0015 222 2200 2.2 0r 2n2 0.0022 332 3300 3.3 or 3n3 0.0033 472 4700 4.7 or 4n7 0.0047 682 6800 6.8 or 6n8 0.0068 103 10000 10 or 10n 0.01 153 15000 15 or 15n 0.015 223 22000 22 or 22n 0.022 333 33000 33 or 33n 0.033 473 47000 47 or 47n 0.047 683 68000 68 or 68n 0.068 104 100000 100 or 100n 0.1 154 150000 150 or 150n 0.15 224 220000 120 or 120n 0.22 334 330000 330 or 330n 0.33 474 470000 470 or 470n 0.47 1.5 1.5 3.3 3.3 10 10 15 15 20 20 30 30 33 33 47 47 56 56 68 68 75 75 82 82 91 91 101 100 0.1n or n1 0.0001 121 120 0.12n 0r n12 0.00012 131 130 0.13 or n13 0.00013 151 150 0.15n or n15 0.00015 181 180 0.18n or n18 0.00018 221 220 0.22n or n22 0.00022 331 330 0.33n or n33 0.00033 471 470 0.47n 0.00047 561 560 0.56n 0.00056 681 680 0.68n 0.00068 751 750 0.75n 0.00075 821 820 0.82n 0.00082 202 2000 2n 0.002 502 5000 5n 0.005 562 5600 5.6n or 5n6 0.0056 203 20000 20n 0.02 503 50000 50n 0.05 563 560000 560n 0.56 204 200000 200n 0.2 564 560000 560n 0.56 105 1000000 1000n 1 205 2000000 2000n 2