8 Nov IEC specifies marking codes for resistors and capacitors and indexes for the dielectric material and the electrodes of plastic film. Fifth edition. Marking codes for resistors and capacitors. Reference number. IEC (E). This is a free 5 page sample. Access the full. 0± F. = 0± E. = 0± 1 2 3 4 = 4 band coding. 15k. Type. According to. IEC According to. IEC 1 2 3 4 5 = 5 band coding. ±1 % = k ±1 %.

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It may therefore cause confusion in some contexts. Date codes for and are obviously wrong.

IEC – Standards Australia

It stems from the fact, that R is used in iec 60062 names for resistors as well, and it is also used in a similar fashion but with incompatible meaning in other part marking codes. K k [nb 4]. CS1 German-language sources de Interlanguage link template link iec 60062 CS1 Russian-language sources ru Articles to be expanded from December All articles to be expanded Articles with empty sections from December All articles with empty sections Iec 60062 using small message boxes.

Archived from the original on The letter and digit code for resistance and capacitance values and toleranceswhich is also known as RKM code [1] or “R notation”, is a notation iec 60062 specify resistor and capacitor values defined in the international standard IEC formerly IEC 62 since List of International Electrotechnical Commission standards.

Letter and digit code

The isc p and n weren’t part of the first issue of the standard, but were added after the adoption of the corresponding SI prefixes. This section iec 60062 empty. Retrieved from ” https: Views Read Edit View history. iec 60062

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This page was last edited on 23 Julyat Ief example, 8K2 indicates a resistor value of 8. When the value can iec 60062 expressed without the need for a prefix, an “R” is used instead of the decimal separator.


This iec 60062 avoids overlooking the decimal separatorwhich may not iecc rendered reliably on components or when duplicating documents. For example, 1R2 indicates 1. By using this site, you agree to iec 60062 Terms of Use and Privacy Policy. Additional zeros imply tighter tolerance, for example 15M0.

For brevity, the notation omits to always specify the unit ohm iec 60062 farad explicitly and instead relies on implicit knowledge raised from the usage of specific iec 60062 either only for 60026 or for capacitors, ieec 1] the case used uppercase letters are iec 60062 used for resistors, lowercase letters for capacitors[nb 2] a part’s appearance, and the context.

The significantly updated IEC The introduction of the letter L in more recent issues of the standard instead of an SI prefix m for milli is justified to maintain the rule of only using uppercase letters iec 60062 resistances the otherwise resulting M was already in use for mega.

Archived PDF from the original iec 60062 The code letters are loosely related to the corresponding SI prefixbut there are several exceptions, where the capitalization differs or alternative letters are oec.

However, the letter E is conflictive with the similar looking but incompatible E notation in engineering, and it may therefore cause considerable confusion as well.


Iec 60062 meant also as part 60062 codethis shorthand notation is widely used in electrical engineering to denote the values of resistors and capacitors in circuit diagrams and in the production of electronic circuits for iec 60062 in bills of material and in silk screens. You can help by adding to it. From Wikipedia, the free encyclopedia.

Standard: IEC 60062

R E [nb 3]. Similar, the standard prescribes the following lowercase letters for capacitances to be used iec 60062 of the decimal point: Iec 60062, a lowercase letter m should be used for capacitances whenever possible to avoid confusion. The standards also define a color code for fixed resistors.

The notation also avoids using a decimal separator and replaces it by a letter associated iec 60062 the prefix symbol for the particular value. This is not only for iec 60062 for example when printed on the part or PCBbut also to circumvent the problem that decimal separators tend to “disappear” when photocopying printed circuit diagrams.

The letters G and T weren’t part of the first issue of the standard, which pre-dates the introduction of the SI system hence the name “RKM code”but were added iec 60062 the adoption of the corresponding SI prefixes.