EN 140402-801:2005

STANDARDPodrobna specifikacija: upori, nespremenljivi, za male moči, žični, za površinsko montažo (SMD) – Pravokotne oblike – Razredi stabilnosti 0,5; 1; 2Detail specification: Fixed low power wire-wound surface mount (SMD) resistors – Rectangular – Stability classes 0,5; 1; 2©
Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljenoReferenčna številkaSIST EN 140402-801:2006(en)ICS31.040.10

EUROPEAN STANDARD
EN 140402-801 NORME EUROPÉENNE EUROPÄISCHE NORM
February 2005 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
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 140402-801:2005 E
ICS 31.040.10 Supersedes CECC 40 402-801:2000
English version
Detail specification: Fixed low power wire-wound
surface mount (SMD) resistors –
Rectangular –
Stability classes 0,5; 1; 2
Spécification particulière: Résistances fixes bobinées à faible dissipation
pour montage en surface (CMS) - Rectangulaire –
Catégories de stabilité 0,5; 1; 2
Bauartspezifikation: Oberflächenmontierbare drahtgewickelte Festwiderstände (SMD) niedriger Belastbarkeit –
Rechteckig –
Stabilitätsklassen 0,5; 1; 2
This European Standard was approved by CENELEC on 2004-12-01. 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Foreword
This European Standard was prepared by the 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 140402-801 on 2004-12-01.
This European Standard supersedes CECC 40 402-801:2000.
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)
2005-12-01 – latest date by which the national standards conflicting with the EN have to be withdrawn
(dow)
2007-12-01 This specification is part of 4 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 140402 Blank Detail Specification: Fixed low power wire wound surface mounting (SMD) resistors EN 140402-801 Detail specification: Fixed low power wire-wound surface mount (SMD) resistors – Rectangular –- Stability classes 0,5; 1; 2 __________

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Table of contents 1 Characteristics and ratings.4 1.1 Dimensions and Ratings.4 1.2 Derating curve.5 1.3 Resistance range and tolerance on rated resistance.6 1.4 Variation of resistance with temperature and temperature rise.7 1.5 Climatic categories.7 1.6 Limits for change of resistance at tests.7 1.7 Marking, packaging and ordering designation.8 1.7.1 Component.8 1.7.2 Package.8 1.7.3 Packaging/Taping.8 1.7.4 Ordering information.8 1.8 Additional information (not for inspection purpose).9 1.8.1 Storage.9 1.8.2 Mounting.9 1.8.3 Soldering process.9 1.8.4 Conductive gluing.9 1.8.5 Use of cleaning solvents.9 1.8.6 Dissipation.9 2 Quality assessment procedures.10 2.1 General.10 2.1.1 Zero defect approach.10 2.1.2 100 %-Test.10 2.1.3 Certificate of Conformity (CoC).10 2.1.4 Certified test records.10 2.1.5 Failure rate level (only version E).10 2.2 Qualification Approval.11 2.2.1 Version A.11 2.2.2 Version E.11 2.3 Quality conformance inspection.11 2.3.1 Qualification approval according to EN 100114-2.11 2.3.2 Technology approval according to EN 100114-6.11 2.3.3 Non-conforming items.11 Annex A (normative) Fixed sample size Qualification Approval and Quality Conformance Inspection test schedule for fixed low power surface mounting (SMD) resistors.12 Annex B (informative)
Letter symbols and abbreviations.17 Annex C (normative)
Standards referred to in this specification.18 Annex D (normative)
Mounting of components.19

Specification available from
the National Committees members of CENELEC EN 140402-801
Electronic components of assessed quality in accordance with: EN 60115-1:2001 EN 140400:2003 EN 140402:1998 Issue 1
Fixed low power wire wound surface mounting resistors (SMD) with rectangular base Style: RW Wire wound, insulated resistor with end terminations for application on rigid or flexible printed board
J Other shapes are permitted within the given dimensions.
Figure 1 – Outline and dimensions (see Table 1) Assessment level EZ *) Version A: with 100 % test Version E: with failure rate level
and 100 % test Stability classes 0,5 ; 1 and 2 *) For explanations on assessment level EZ see 2.1.1. 1 Characteristics and ratings Various parameters of this component are precisely specified in this specification. Unspecified parameters may vary from one component to another. 1.1 Dimensions and Ratings Table 1 – Style and dimensions Style Length L mm Width W mm Height H mm Termination Width D mm Termination breadth J mm Weight a mg metric inch min. max. min. max. min. max.min. max. min. max. max. RW 0503M RW 2012 4,6 5,6 3,1 3,3 2,0 2,81,0 1,5 0,7 1,3
200 RW 0704M RW 2515 5,8 8,0 3,4 4,8 1,7 4,52,0 2,8 0,8 1,8
400 RW 1107M RW 4527 10,5 12,5 5,0 8,4 3,5 5,53,0 5,6 1,0 2,8 1 000 RW 1607M RW 6927 14,3 18,3 6,6 7,5 6,4 7,63,0 5,8 2,0 2,8 1 700 a For information only.
Table 2 – Ratings for stability class 2; 1 and 0,5 on printed board Insulation voltage d.c. or a.c. (peak) Uins V Style Stability class Rated dissipation P25 a W Limiting element voltage d.c. or a.c. (r.m.s) Umax V 1 min continuous RW 0503M 2; 1; 0,5 0,75 33 500 75 RW 0704M 2; 1; 0,5 1,0 50 500 75 RW 1107M 2; 1; 0,5 2,0 150 500 75 RW 1607M 2; 1; 0,5 2,5 200 500 75 a Power dissipation at 70°C is 80 % of rated dissipation (see derating curve).

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1.2 Derating curve Resistors covered by this specification are derated according to the following diagram:
-50 °C 0 °C 25 °C70 °C100 °C150 °C200 °C 250 °C 0 % 20 % 50 % 80 % 100 % Upper category temperature (UCT) Lower category temperature (LCT) -55 °CPercentage of rated dissipation Ambient Temperature ϑa Figure 2 – Derating curve
See 1.8.6 regarding special care on derating information.

1.3 Resistance range and tolerance on rated resistance Version A: The following combinations of temperature coefficient, tolerance on rated resistance shall be used for qualification approval according to 2.2.1 and quality conformance inspection according to 2.3. Resistance values of E-series according to IEC 60063 shall be used.
The qualification of resistance values below or beyond the specified resistance values is permitted, if they fulfil the require-ments of the closest stability class ( e.g. RW 0704M 1 % > 2,21 kΩ shall fulfil the requirements of stability class 1). Table 3a – Resistance range, tolerance on rated resistance for version A Style Tolerance on rated resistance Resistance range Stability class
(%) Code *)
RW 0503M ± 5 J 0,047 Ω to 1 kΩ 2
± 1 F 0,1 Ω to 1 kΩ 1
± 0,5 E 0,1 Ω to 1 kΩ 0,5 RW 0704M ± 5 J 0,047 Ω to 2,2 kΩ 2
± 1 F 0,1 Ω to 2,21 kΩ 1
± 0,5 E 0,1 Ω to 2,21 kΩ 0,5 RW 1107M ± 5 J 0, 047 Ω to 4,7 kΩ 2
± 1 F 0,1 Ω to 4,75 kΩ 1
± 0,5 E 0,1 Ω to 4,75 kΩ 0,5 RW 1607M ± 5 J 0,047 Ω to 13 kΩ 2
± 1 F 0,1 Ω to 13 kΩ 1
± 0,5 E 0,1 Ω to 13 kΩ 0,5 *)
Code letters according to EN 60062.
Version E: Version E will be specified further according to specific requirements (proposal is as follows) The following combinations of temperature coefficient, tolerance on rated resistance and E-series according to IEC 60063 shall be used for qualification approval according to 2.2.2 and quality conformance inspection according to 2.3 and are permitted only. Table 3b – Resistance range, tolerance on rated resistance for version E Style Tolerance on rated resistance Resistance range Stability class E series
(%) Code *)
RW 0503M ± 5 % J 0,47 Ω to 1 kΩ 2 E24
± 0,5 % E 0,464 Ω to 1 kΩ 0,5 E96 RW 0704M ± 5 % J 0,47 Ω to 1 kΩ 2 E24
± 0,5 % E 0,464 Ω to 1 kΩ 0,5 E96 RW 1107M ± 5 % J 0,47 Ω to 2,2 kΩ 2 E24
± 0,5 % E 0,464 Ω to 2,21 kΩ 0,5 E96 RW 1607M ± 5 % J 0,47 Ω to 4,3 kΩ 2 E24
± 0,5 % E 0,464 Ω to 4,32 kΩ 0,5 E96 *)
Code letters according to EN 60062.

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1.4 Variation of resistance with temperature and temperature rise Table 4 – Temperature coefficients and percentage change of resistance (acc. to EN 140400, Table 2) Resistance range Temperature coefficient Limit of resistance change ∆R/R (%) (Ω)
(ppm/K) Temp. charact. 20 °C / 70 °C LCT / Ref. temp. -55 °C / 20 °C Ref. temp. / UCT 20 °C / 200 °C R < 0,47 ± 250 ± 1,25 % ± 1,875 % ± 4,5 % 0,47 ≤ R < 1 ± 100 ± 0,5 % ± 0,75 % ± 1,8 % 1 ≤ R ≤ 10 ± 50 ± 0,25 % ± 0,375 % ± 0,9 % R > 10 ± 25 ± 0,125 % ± 0,188 % ± 0,45 % Table 5 – Limit of temperature rise Stability class Limit of temperature rise at rated dissipation 0,5; 1; 2 Tr ≤ 225 °C
The thermal resistance is calculated to Rth = Tr / P25. 1.5 Climatic categories Table 6 – Climatic categories
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