EN 140400:2003
(Main)Sectional specification: Fixed low power surface mount (SMD) resistors
Sectional specification: Fixed low power surface mount (SMD) resistors
This sectional specification prescribes the preferred values for characteristics and ratings and also the inspection requirements for fixed surface mount resistors of assessed quality. These resistors generally have metallised connecting pads and are intended to be mounted directly on to substrates, for example hybrid integrated circuits or printed boards. It selects from the generic specification, EN 60115-1, the appropriate methods of test to be used in detail specifications derived from this specification. Associated with this specification are one or more blank detail specifications each reference by an EN number. A blank detail specification which has been completed as specified in 1.2 of this specification forms a detail specification. Such detail specifications may be used for the grant of qualification approval to a resistor and for the performance of quality conformance inspection in accordance with the CECC system.
Rahmenspezifikation: Oberflächenmontierbare Festwiderstände (SMD) kleiner Belastbarkeit
Diese Rahmenspezifikation legt die bevorzugten Werte der Eigenschaften und Bemessungswerte sowie die Prüfanforderungen für oberflächenmontierbare Festwiderstände mit bewerteter Qualität fest. Diese Wider-stände haben im Allgemeinen metallisierte Anschlussflächen und sind zur direkten Montage auf Substraten, z. B. in integrierten Schichtschaltungen oder auf Leiterplatten, vorgesehen. Sie wählt aus der Fachgrund-spezifikation EN 140000 diejenigen Prüfverfahren aus, die in der von dieser Spezifikation abgeleiteten Bauartspezifikation anzuwenden sind. Zu dieser Spezifikation gehören ein oder mehrere Vordrucke für Bauartspezifikation, auf die jeweils durch die EN-Nummer Bezug genommen werden kann. Ein Vordruck für Bauartspezifikation, der nach 1.2 dieser Rah-menspezifikation vervollständigt ist, stellt eine Bauartspezifikation dar. Diese Bauartspezifikationen dürfen im CECC-System für die Bauartanerkennung eines Widerstandes und für die Durchführung der Qualitätskonfor-mitätsprüfungen verwendet werden.
Spécification intermédiaire: Résistances fixes à faible dissipation pour montage en surface (CMS)
Sectional specification: Fixed low power surface mounting (SMD) resistors
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Standards Content (Sample)
SIST EN 140400:2004SLOVENSKIseptember 2004
STANDARDSectional specification: Fixed low power surface mounting (SMD) resistors©
Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljenoReferenčna številkaSIST EN 140400:2004(en)ICS31.040.10
EUROPEAN STANDARD
EN 140400 NORME EUROPÉENNE EUROPÄISCHE NORM
December 2003 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 140400:2003 E
ICS 31.040.10 Supersedes EN 140400:1996 + A1:2001
English version
Sectional specification:
Fixed low power surface mount (SMD) resistors
Spécification intermédiaire:
Résistances fixes à faible dissipation
pour montage en surface (CMS)
Rahmenspezifikation: Oberflächenmontierbare Festwiderstände (SMD) kleiner Belastbarkeit
This European Standard was approved by CENELEC on 2003-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member.
This European Standard exists in two official versions (English, German). A version in any other language made by translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.
EN 140400:2003 - 2 - Foreword
This European standard was prepared by the CENELEC Technical Committee CLC/TC 40XB, Resistors.
It is based, wherever possible, on the publications of the International Electrotechnical Commission and in particular on IEC 60115-8, Fixed resistors for use in electronic equipment.
This European Standard supersedes EN 140400:1996 + A1:2001.
The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 140400 on 2003-09-01.
The following dates were fixed:
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2004-09-01
- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2006-09-01
Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, Annexes A and C are normative and Annex B is informative.
- 3 - EN 140400:2003 Contents 1 General.4 1.1 Scope.4 1.2 Information to be specified in the detail specification.4 2 Preferred characteristics, ratings and severities for environmental and overload tests.5 2.1 Preferred characteristics.5 2.1.1 Style and dimensions.5 2.1.2 Preferred climatic categories.6 2.1.3 Temperature characteristics and temperature coefficients of resistance.6 2.1.4 Limits of change of resistance.7 2.2 Preferred values of ratings.7 2.2.1 Rated resistance.7 2.2.2 Tolerances on rated resistance.8 2.2.3 Rated dissipation (in the mounted state).8 2.2.4 Limiting element voltage.8 2.2.5 Insulation resistance (insulated styles only).8 2.2.6 Insulation voltage (insulated styles o
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