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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Archived PDF from the original on 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. It consists of the E3E6E12E24E48E96 and E series, where the number after the ‘E’ designates the quantity of value “steps” in each series.
Later, the post—World War II baby boom and the invention of the transistor kicked off demand for consumer electronics goods during the s. In the early 20th centurycapacitor previously called condenser   and resistor   value increments were different than today.
Other types of electrical components are either specified by the Renard series for example fuses or are defined in relevant product standards for example IEC for wires.
This page was last edited on 1 Novemberat In other projects Wikimedia Commons. This allows easier purchasing migration between different tolerance parts. Commons category link is on Wikidata Commons category link is on Wikidata using P List of International Electrotechnical Commission ifc. As transistor radio production migrated towards Japan during the s, it was critical for the electronic industry to have international standards.
New Version of IEC Published | In Compliance Magazine
6063 E3 series is defined as a series of the numbers 1. Wikimedia Commons has media related to E12 values. Archived from the original on From Wikipedia, the free encyclopedia. World War II military production was a major influence for establishing common standards across many industries.
Retrieved from ” https: Also, the E series is used for 0. Currently, most electrolytic capacitors are manufactured with values in the E6 or E12 series, thus E3 series is likely obsolete. It should be noted that some values in the E24 series don’t exist in E48 to E series.