EN 140401-804:2011

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bauartspezifikation: SMD Schicht-Festwiderstände niedriger Belastbarkeit mit hoher Stabilität - Rechteckig - Stabilitätsklassen 0,1; 0,25Spécification particulière: Résistances fixes à couche de haute stabilité et à faible dissipation CMS - Rectangulaires - Catégories de stabilité 0,1; 0,25Detail Specification: Fixed low power film high stability SMD resistors - Rectangular - Stability classes 0,1; 0,2531.040.10Fiksni uporFixed resistorsICS:Ta slovenski standard je istoveten z:EN 140401-804:2011SIST EN 140401-804:2011en01-september-2011SIST EN 140401-804:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD EN 140401-804 NORME EUROPÉENNE
EUROPÄISCHE NORM June 2011
CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2011 CENELEC -
All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 140401-804:2011 E
ICS 31.040.10 Supersedes EN 140401-804:2005
English version
Detail Specification: Fixed low power film high stability SMD resistors -
Rectangular -
Stability classes 0,1; 0,25
Spécification particulière: Résistances fixes à couche de haute stabilité et à faible dissipation CMS -
Rectangulaires -
Catégories de stabilité 0,1; 0,25
Bauartspezifikation: SMD Schicht-Festwiderstände niedriger Belastbarkeit mit hoher Stabilität -
Rechteckig -
Stabilitätsklassen 0,1; 0,25
This European Standard was approved by CENELEC on 2011-05-09. 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, Croatia, 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.
Foreword This European Standard was prepared by Technical Committee CENELEC TC 40XB, Resistors. The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 140401-804 on 2011-05-09. This document supersedes EN 140401-804:2005. Preceding documents on the subject covered by this specification have been:
– only on resistors without established reliability, now version A: – CECC 40 401-010:1995-02;
– CECC 40 401-010:1997-10. EN 140401-804:2011 the following significant technical changes with respect to EN 140401-804:2005: – modification of the title; – introduction of a test on the resistance to electrostatic discharge in 1.6 and Annex A; – introduction of description and test methods for lead-free soldering in 1.8, 1.10.3 and Annex A; – introduction of the code letters for temperature coefficient as given in EN 60062; – revision of the ordering information in 1.9.4; – revised information on pulse load capability in 1.10.6; – revised information on resistance value drift in 1.10.7; – revised information on current noise in 1.10.9; – adoption of the IECQ rules of procedure, IEC QC 001002-3; – revision of the sample quantities and the sequence of tests in Annex A. Additionally, EN 140401-804:2011 is also an editorial revision of EN 140401-804:2005. 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)
2012-05-09 – latest date by which the national standards conflicting with the EN have to be withdrawn
(dow)
2014-05-09 This specification is part of four documents describing fixed resistors for surface mount technology as follows: EN 60115-1 Fixed resistors for use in electronic equipment – Part 1: Generic specification
(IEC 60115-1, mod.) EN 140400 Sectional Specification: Fixed low power surface mount (SMD) resistors EN 140401 Blank Detail Specification: Fixed low power film surface mount (SMD) resistors EN 140401-804 Detail Specification: Fixed low power film high stability surface mount (SMD) resistors –
Rectangular – Stability classes 0,1; 0,25 __________ SIST EN 140401-804:2011

– 3 – EN 140401-804:2011 Contents Foreword . 2Contents . 31Characteristics and ratings . 51.1Dimensions and ratings . 51.2Derating curve . 71.3Resistance range and tolerance on rated resistance . 71.3.1Version A . 71.3.2Version E . 91.4Variation of resistance with temperature and temperature rise. 101.5Climatic categories . 101.6Limits for change of resistance at tests . 111.7Non-linear properties . 121.8Tests related to soldering . 121.8.1Severities for solderability testing . 121.8.2Severities for testing resistance to soldering heat . 131.9Marking, packaging and ordering designation . 141.9.1Marking of the component . 141.9.2Taping. 141.9.3Marking of the packaging . 141.9.4Ordering information . 141.10Additional information (not for inspection purpose) . 151.10.1Storage . 151.10.2Mounting . 151.10.3Soldering process . 151.10.4Conductive gluing . 151.10.5Use of cleaning solvents . 161.10.6Pulse load capability . 161.10.7Variation of resistance value (drift) for lifetimes up to 200 000 h . 191.10.8Dissipation notes . 221.10.9Current noise . 231.10.10Temperature range extension . 232Quality assessment procedures . 232.1General . 232.1.1Zero defect approach . 232.1.2100 %-test . 242.1.30 Ω resistor . 242.1.4Certificate of Conformity (CoC) . 242.1.5Certified test records . 242.1.6Failure rate level . 242.2Qualification approval . 252.2.1Version A . 252.2.2Version E . 252.3Quality conformance inspection . 252.3.1Qualification approval according to IEC QC 001002-3:2005, Clause 3 . 252.3.2Technology approval according to IEC QC 001002-3:2005, Clause 6 . 252.3.3Non-conforming items . 25SIST EN 140401-804:2011

Annex A (normative)
Fixed sample size Qualification Approval and Quality Conformance Inspection test schedule
for fixed low power surface mount (SMD) resistors . 26Annex B (informative)
Letter symbols and abbreviations . 35Annex C (normative)
Normative references . 37 Figures Figure 1 – Outline and dimensions (see Table 1) . 5Figure 2 – Derating curve . 7Figure 3 – Limits of non-linearity of resistors . 12Figure 4 – Pulse parameter for rectangular and exponential pulses. 17Figure 5 – Maximum permissible pulse load Pi, max . 17Figure 6 – Maximum permissible pulse load Pi, max for single pulses . 18Figure 7 – Maximum permissible pulse voltage Ui, max . 19Figure 8 – Drift factor M . 21Figure 9 – Temperature rise for high packaging density . 22Figure 10 – Current noise. 23 Tables Table 1 – Style and dimensions . 5Table 2a – Ratings for stability class 0,25 . 6Table 2b – Ratings for stability class 0,1 . 6Table 2c – Ratings for 0 Ω resistors . 6Table 3a – Resistance range, tolerance on rated resistance for version A . 8Table 3b – Resistance range, tolerance on rated resistance for version E . 9Table 4 – Temperature coefficients and percentage change of resistance
(according to EN 140400:2003, Table 2) . 10Table 5 – Limit of temperature rise . 10Table 6 – Climatic categories . 10Table 7a – Limits for change of resistance at tests . 11Table 7b – Limits for change of resistance at tests . 11Table 8 – Test method for resistance to soldering heat test . 13Table 9 – Maximum thermal resistance in applications . 20Table A.1 – Test schedule for qualification approval and quality conformance inspection, lot-by-
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