IEC 60063 PDF

The E series is a system of preferred numbers (also called preferred values) derived for use in IEC release history: IEC (aka IEC ). IEC Preferred Number Series for Resistors and Capacitors. Find the most up-to-date version of IEC at Engineering

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As transistor radio production migrated towards Japan during the s, it was critical for the electronic industry to have international standards.

This page was last edited on 1 Novemberat If a manufacturer sold resistors with E3 series values in a range of 1 ohm to 10 megohms, then the available resistance values would be: The two main differences between each major group is the number of significant digits 2 digits for E3 to E24, 3 digits for E48 to E and different rounding rules.

Archived PDF from the original on Commons category link is on Wikidata Commons category link is on Wikidata using P World War II military production was a major influence for establishing common ied across many industries.


In the early 20th centurycapacitor previously called condenser [1] [2] and resistor [3] [4] value increments were different than today. Wikimedia Commons has media related to E12 values.

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Also, the E series is used for 0. From Wikipedia, the free encyclopedia. Over time, components evolved towards common values, then based on some of these existing conventions, the International Electrotechnical Commission IEC began work on an international standard in List of International Electrotechnical Commission standards.

E series of preferred numbers

Archived from the original on Later, the post—World War II iecc boom and the invention of the transistor kicked off demand for consumer electronics goods during the s.

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The E3 series is defined as a series of the numbers 1. Currently, most electrolytic capacitors are manufactured with values in the E6 or E12 series, thus E3 series is likely obsolete. Retrieved from ” https: Other types of electrical components are either ifc by the Renard series for example fuses or are defined in relevant product standards for example IEC for wires.


New Version of IEC Published | In Compliance Magazine

It consists of the E3E6E12E24E48E96 and E series, where the number after the ‘E’ designates the quantity of value “steps” eic each series. It should be noted that some values in the E24 series don’t exist in E48 to E series.

This allows easier purchasing migration between different tolerance parts. Views Read Edit View history.