EN 140100:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Sectional Specification: Fixed low power film resistorsRþLSpécification intermédiaire: Résistances couche fixes à faible dissipationRahmenspezifikation: Schicht-Festwiderstände niedriger BelastbarkeitTa slovenski standard je istoveten z:EN 140100:2008SIST EN 140100:2008en,fr,de31.040.10ICS:SIST EN 140100:2002/A1:2002SIST EN 140100:20021DGRPHãþDSLOVENSKI
STANDARDSIST EN 140100:200801-april-2008

EUROPEAN STANDARD EN 140100 NORME EUROPÉENNE
EUROPÄISCHE NORM February 2008
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
© 2008 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 140100:2008 E
ICS 31.040.10 Supersedes EN 140100:1996 + A1:2001
English version
Sectional Specification:
Fixed low power film resistors
Spécification intermédiaire:
Résistances couche fixes
à faible dissipation
Rahmenspezifikation:
Schicht-Festwiderstände
niedriger Belastbarkeit
This European Standard was approved by CENELEC on 2007-10-01. 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 three official versions (English, French, 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, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

– introduction of description and test methods for lead-free soldering;
– introduction of the code letters for temperature coefficient as given in EN 60062; – adoption of the IECQ rules of procedure, QC 001002-3; – editorial revision. The preceding document on the subject covered by this specification has been CECC 40 100:1980. 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)
2008-10-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)
2010-10-01 __________
– 3 – EN 140100:2008
Table of 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 coefficients of resistance.6 2.1.4 Limits of change of resistance.7 2.2 Preferred values of ratings.9 2.2.1 Rated resistance.9 2.2.2 Tolerances on rated resistance.9 2.2.3 Rated dissipation (in the mounted state).9 2.2.4 Limiting element voltage.9 2.2.5 Insulation resistance (insulated styles only).9 2.2.6 Insulation voltage (insulated styles only).9 2.2.7 Combinations of tolerance on rated resistance and temperature coefficient.9 2.3 Preferred test severities.10 2.3.1 Damp heat, steady state.10 2.3.2 Vibration.10 2.3.3 Low air pressure.10 2.3.4 Rapid change of temperature.10 2.3.5 Solderability.10 2.3.6 Resistance to soldering heat.11 2.3.7 Overload.11 2.3.8 Single pulse high voltage overload.12 2.3.9 Periodic electric overload.12 2.3.10 Resistance to electrostatic discharge.12 2.3.11 Flammability.12 2.4 Preparation of specimen.12 2.4.1 Drying.12 2.4.2 Mounting of components on a test rack.12 2.4.3 Mounting of components on test boards.13 3 Quality assessment procedures.14 3.1 General.14 3.1.1 Structurally similar components.14 3.1.2 Formation of inspection lots.14 3.2 Qualification approval on the basis of the fixed sample size procedure.14 3.3 Quality conformance inspection.15 3.4 Technology approval.15 3.5 Assessed process average procedures.15 3.6 Delayed delivery.15 Annex A (normative) Fixed sample size Qualification Approval and Quality Conformance Inspection
test schedule for fixed low power resistors.16 Annex B (informative) Letter symbols and abbreviations.25 Bibliography.27

When products approved to the detail specification may have different ranges, the following statement should be added: “The range of values available in each style is given in the register of approvals, available e.g. on the website www.iecq.org.“ f) Tolerances on rated resistance See 2.2.2. NOTE 2
When products approved to the detail specification may have different ranges, the following statement should be added: “The range of values available in each style is given in the register of approvals, available e.g. on the website www.iecq.org.“ g) Temperature coefficient of resistance See 2.1.3. For preferred combinations of temperature coefficient and tolerance on rated resistance see 2.2.7.

– 5 – EN 140100:2008
h) Rated dissipation at 70 °C See 2.2.3. The mounting conditions are as described in 2.4.2. or 2.4.3 The detail specification shall state the maximum dissipation at temperatures other than 70 °C, e.g. the derating, either in a diagram or in the form of a statement. The category dissipation shall be zero. All break points shall be verified by tests. i) Limiting element voltage See 2.2.4 and EN 60115-1, 2.2.16. j) Insulation voltage (insulated styles only) See 2.2.6 and EN 60115-1, 2.2.17. k) Insulation resistance (insulated styles only) See 2.2.5. l) Marking The resistor shall be marked with the rated resistance according to EN 60062, Clause 3, and as many of the remaining items listed in EN 60115-1, 2.4.1.
All the required information shall be marked on the package. m) Ordering information The detail specification shall specify that the following information is required as a minimum when ordering resistors:
–
the number of the detail specification and style reference;
–
the rated resistance according to EN 60062;
–
the tolerance on rated resistance according to EN 60062;
–
the temperature coefficient of resistance according to EN 60062. The detail specification may include additional information (which is not normally required to be verified by the inspection procedure), such as circuit diagrams, curves, drawings and notes needed for the clarification of the detail specification. 2 Preferred characteristics, ratings and severities for environmental and overload tests 2.1 Preferred characteristics The values given in detail specifications shall preferably be selected from the following: 2.1.1 Style and dimensi
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