Preferred number series for resistors and capacitors

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

30-06-2015

Publisher

British Standards Institution

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Number series
5 Application of an E series
Annex ZA (normative) - Normative references to
international publications with their
corresponding European publications
Bibliography

Gives series of preferred values for the resistance of resistors and for the capacitance of capacitors.

This International Standard provides series of preferred values for the resistance of resistors and for the capacitance of capacitors. The definition of such series with a defined numeric resolution is a basic prerequisite for the marking and coding of capacitors and resistors with their respective capacitance or resistance values as described in IEC60062 . NOTE The number series defined in this standard are based on progressive ratios of [Formula removed.], with r = 3 · 2 i , and i being a whole number in the range of 0 to 6, hence e.g. of [Formula removed.] . This system of progressive ratios had been established prior to the 1952 release of the first edition of this standard 1 as a consequence of the standardisation of tolerances at±5%,±10%and±20%and the related commercial practice. An adoption of the ISO practice, based on a [Formula removed.] system, was never considered achievable.

Committee	W/-
DevelopmentNote	Supersedes BS 2488(1966) & 13/30289538 DC. (06/2015)
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 2488:1966 13/30289538 DC : 0

Standards	Relationship
IEC 60063:2015	Identical
EN 60063 : 2015	Identical

ISO 3:1973	Preferred numbers Series of preferred numbers
IEC 60062:2016	Marking codes for resistors and capacitors
EN 60062:2016/AC:2016-12	MARKING CODES FOR RESISTORS AND CAPACITORS (IEC 60062:2016/COR1:2016)

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BS EN 60063:2015

Current

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory

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