SIST EN 140101-806:2008
(Main)Detail Specification: Fixed low power film resistors - Metal film resistors on high grade ceramic, conformal coated or molded, axial or preformed leads
Detail Specification: Fixed low power film resistors - Metal film resistors on high grade ceramic, conformal coated or molded, axial or preformed leads
This blank detail specification is a supplementary document to the sectional specification and contains requirements for style and layout and minimum content of detail specifications. Detail specifications not complying with these requirements shall not be considered as being in accordance with European standards nor shall they be so described.
Bauartspezifikation: Schicht-Festwiderstände niedriger Belastbarkeit - Metallschichtwiderstände auf hochwertiger Keramik, mit konformer Umhüllung und axialen oder vorgeformten Anschlüssen
Spécification particulière: Résistances fixes à couche et à faible dissipation - Résistances à couche métallique sur céramique de qualité supérieure, moulée ou disposant d'un revêtement enrobant, avec des sorties préformées ou axiales
Podrobna specifikacija - Fiksni plastni upori majhnih moči - Upori s kovinsko plastjo na visokokakovostni keramiki, z običajno prevleko ali zaliti, osni ali predoblikovani izvodi
Različni parametri tega sestavnega dela so natančno opredeljeni v tej specifikaciji. Neopredeljeni parametri so lahko pri posameznih sestavnih delih različni.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Detail Specification: Fixed low power film resistors - Metal film resistors on high grade ceramic, conformal coated or molded, axial or preformed leadsSpécification particulière: Résistances fixes à couche et à faible dissipation - Résistances à couche métallique sur céramique de qualité supérieure, moulée ou disposant d'un revêtement enrobant, avec des sorties préformées ou axialesBauartspezifikation: Schicht-Festwiderstände niedriger Belastbarkeit - Metallschichtwiderstände auf hochwertiger Keramik, mit konformer Umhüllung und axialen oder vorgeformten Anschlüssen31.040.10Fiksni uporFixed resistorsICS:SIST EN 140101-806:2008en,fr,deTa slovenski standard je istoveten z:EN 140101-806:200801-junij-2008SIST EN 140101-806:2008SLOVENSKI
STANDARD
EUROPEAN STANDARD EN 140101-806 NORME EUROPÉENNE
EUROPÄISCHE NORM March 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 140101-806:2008 E
ICS 31.040.10 Supersedes CECC 40 101-806:1997
English version
Detail Specification:
Fixed low power film resistors -
Metal film resistors on high grade ceramic,
conformal coated or molded, axial or preformed leads
Spécification particulière:
Résistances fixes à couche
et à faible dissipation -
Résistances à couche métallique
sur céramique de qualité supérieure, moulée ou disposant
d'un revêtement enrobant,
avec des sorties préformées ou axiales
Bauartspezifikation:
Schicht-Festwiderstände
niedriger Belastbarkeit -
Metallschichtwiderstände auf hochwertiger Keramik, mit konformer Umhüllung und axialen oder vorgeformten Anschlüssen
This European Standard was approved by CENELEC on 2007-11-01. 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.
EN 140101-806:2008 – 2 – Foreword This European Standard was prepared by the Technical Committee CENELEC TC 40XB, Resistors. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 140101-806 on 2007-11-01. This European Standard supersedes CECC 40 101-806:1997. 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)
2008-11-01 – latest date by which the national standards conflicting with the EN have to be withdrawn
(dow)
2010-11-01 Preceding documents on the subject covered by this specification have been: – only on resistors without established reliability, now Version A: − CECC 40 101-012: 1978-09; 1981-10; 1983-09; 1992-11 − CECC 40 101-013: 1978-09; 1981-10; 1983-09; 1992-11 − CECC 40 101-014: 1978-09; 1981-10 − CECC 40 101-015: 1981-10; 1983-09; 1992-11 − CECC 40 101-016: 1978-09; 1981-10; 1983-09; 1992-11 − CECC 40 101-017: 1978-09; 1981-10; 1983-09; 1992-11 − CECC 40 101-018: 1981-01; 1983-09; 1992-11 − CECC 40 101-022: 1977-07 − CECC 40 101-023: 1977-07 − CECC 40 101-025: 1977-06 − CECC 40 101-033: 1981-10; 1983-09 − CECC 40 101-039: 1982-04; 1986-05 − CECC 40 101-040: 1982-04; 1984-06 − CECC 40 101-041: 1984-00 − CECC 40 101-042: 1984-00 − CECC 40 101-045: 1985-07; 1987-01; 1992-11; 1995-05 − CECC 40 101-048: 1992-02; 1992-10 – only on resistors with established reliability, now Version E: − CECC 40 101-046: 1987-11 − CECC 40 101-047: 1988-07; 1989-08; 1990-12; 1993-02; 1995-06 Compared to the superseded standard, the following changes have been implemented: – modification of the title; – elimination of style E; – revised tables for resistance range and tolerance on rated resistance in 1.3; – introduction of temperature coefficients ± 10 . 10-6/K and ± 5 . 10-6/K in 1.4; – introduction of stability classes 0,25, 0,1 and 0,05 in 1.3 and 1.6; – introduction of a test on the resistance to electrostatic discharge (ESD) in 1.6 and Annex A; – introduction of description and test methods for lead-free soldering in 1.9.3 and Annex A; – introduction of code letters for temperature coefficient (TCR) as in EN 60062; – revision of ordering information in 1.8.4;
– 3 – EN 140101-806:2008 – revised information on pulse load capability in 1.9.5; – revised information on resistance drift in 1.9.6; – adoption of the IECQ rules of procedure, IEC QC 001002-3; – revision of the sample quantities and the sequence of tests in Annex A; – editorial revision.
This specification is part of a series of documents describing fixed low power film resistors as follows. – EN 60115-1 Fixed resistors for use in electronic equipment – Part 1: Generic specification (IEC 60115-1, mod.) – EN 140100
Sectional specification: Fixed low power film resistors – this detail specification. Any detail specification within this series is written on the basis of – EN 140101 Blank detail specification: Fixed low power film resistors. —————
EN 140101-806:2008 – 4 – Contents 1 Characteristics and ratings . 5 1.1 Dimensions and ratings . 5 1.2 Derating curve . 7 1.3 Resistance range and tolerance on rated resistance . 7 1.4 Variation of resistance with temperature and temperature rise . 11 1.5 Climatic categories . 11 1.6 Limits for change of resistance at tests . 12 1.7 Non-linear properties . 13 1.8 Tests related to soldering . 13 1.9 Marking, packaging and ordering designation . 14 1.10 Additional information (not for inspection purpose) . 15 2 Quality assessment procedures . 21 2.1 General . 21 2.2 Qualification Approval . 23 2.3 Quality Conformance Inspection . 23 Annex A (normative)
Fixed sample size Qualification Approval and Quality Conformance Inspection test schedule for fixed low power film resistors . 25 Annex B (informative)
Letter symbols and abbreviations . 33 Bibliography . 35 Figure 1 – Outline and dimensions (see Table 1) . 5 Figure 2 – Derating curve . 7 Figure 3 – Limits of non-linearity in resistance . 13 Figure 4 – Pulse parameter for rectangular and exponential pulses . 13 Figure 5 – Maximum permissible pulse load Pi,max for continuous pulses . 17 Figure 6 – Maximum permissible pulse load Pi,max for single pulses . 18 Figure 7 – Maximum permissible pulse voltage Ui,max . 18 Figure 8a – Drift factor for UCT = 155 °C . 19 Figure 8b – Drift factor for UCT = 125 °C . 20 Figure 8c – Drift factor for UCT = 85 °C . 20 Figure 9 – Current noise
.................................................................................................................................. 21 Table 1 – Style and dimensions ......................................................................................................................... 5 Table 2a – Ratings for stability classes 2; 1; 0,5 ................................................................................................ 6 Table 2b – Ratings for stability class 0,25 .......................................................................................................... 6 Table 2c – Ratings for stability class 0,1; 0,05 ................................................................................................... 6 Table 2d – Ratings for 0 Ω resistors ................................................................................................................... 6 Table 3a – Resistance range and tolerance on rated resistance for Version A ................................................. 8 Table 3b – Resistance range and tolerance on rated resistance for Version E ............................................... 10 Table 4 – Temperature coefficients and percentage change of resistance ..................................................... 11 Table 5 – Limits of temperature rise ................................................................................................................. 11 Table 6 – Climatic categories ........................................................................................................................... 11 Table 7a – Limits for change of resistance at tests .......................................................................................... 12 Table 7b – Limits for change of resistance at tests .......................................................................................... 12 Table A.1 – Test schedule for Qualification Approval and Quality Conformance Inspection, lot-by-lot tests, assessment level EZ .................................................................................................................... 24 Table A.2 – Test schedule for Qualification Approval and Quality Conformance Inspection, periodic tests, assessment level EZ .................................................................................................................... 27
– 5 – EN 140101-806:2008 Specification available from: CENELEC Central Secretariat, Rue de Stassart 35, B-1050 Brussels, or from the addresses shown on the inside cover EN 140101-806 Electronic components of assessed quality in accordance with: EN 60115-1:2001 + A1:2001 EN 140100:2008 EN 140101:2008 Issue 2 March 2008
Other shapes are permitted within the given dimensions. Figure 1 – Outline and dimensions (see Table 1) Fixed low power film resistors Metal film resistors on high grade ceramic, conformal coated or molded, axial or preformed lead-free leads Assessment level EZ a Version A: with 100 %-test Version E: with failure rate level and 100 %-test Stability classes 0,05; 0,1; 0,25; 0,5; 1; 2 a For explanation on assessment level EZ see 2.1.1. 1 Characteristics and ratings Various parameters of this component are precisely defined 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 Diameter D mm d a mm e b mm c c mm Mass d mg Code Size d min. max. min. max.
max. max. A 0204 3,0 4,0 1,3 1,9 0,4 / 0,5 7,5 0,5 130 B 0207 5,0 6,5 2,0 2,5 0,6 10,0 0,5 280 C 0411 7,5 10,7 3,0 4,0 0,6 / 0,7 15,0 0,5 600 D 0414 10,0 12,0 3,6 4,1 0,8 17,5 1,0 790 a Permissible tolerance according to HD 349 S1. b Standard distance for the axis to bent leads. Smaller modules may be agreed between manufacturer and customer. c Length of excess protective coating. d For information only. The minimum lead length of 21 mm is valid for tape packaging according to EN 60286-1 only (free lead length). Taping according to EN 60286-1 or preformed leads are permitted. Details to be agreed between manufacturer and customer. For preformed leads the length of excess protective coating may be larger than given in Table 1. Information about manufacturers who have components qualified to this detail specification is available in the approvals section of the website http://www.iecq.org
EN 140101-806:2008 – 6 – Table 2a – Ratings for stability classes 2; 1; 0,5 Style Stability class Rated dissipation P70 mW Limiting element voltaged.c. or a.c. (r.m.s.) UmaxV Insulation voltage d.c. or a.c. (peak) Uins V 1 min continuous A 2; 1; 0,5 400 200 300 75 B 2; 1; 0,5 600 300 500 75 C 2; 1; 0,5 800 500 750 75 D 2; 1; 0,5 900 500 750 75
Table 2b – Ratings for stability class 0,25 Style Stability class Rated dissipation P70 mW Limiting element voltaged.c. or a.c. (r.m.s.) UmaxV Insulation voltage d.c. or a.c. (peak) Uins V 1 min continuous A 0,25 250 200 300 75 B 0,25 400 300 500 75 C 0,25 500 500 750 75 D 0,25 600 500 750 75
Table 2c – Ratings for stability class 0,1; 0,05 Style Stability class Rated dissipation P70 mW Limiting element voltaged.c. or a.c. (r.m.s.) UmaxV Insulation voltage d.c. or a.c. (peak) Uins V 1 min continuous A 0,1; 0,05 75 200 300 75 B 0,1; 0,05 125 300 500 75 C 0,1; 0,05 150 500 750 75 D 0,1; 0,05 175 500 750 75
Table 2d – Ratings for 0 Ω resistors Style Maximum current Imax A Maximum resistance Rmax mΩ Insulation voltage d.c. or a.c. (peak) Uins V 1 min continuous A 3 20 300 75 B 5 20 500 75
– 7 – EN 140101-806:2008 1.2 Derating curve Resistors covered by this specification are derated according to the following diagram: Ambient temperature ϑaPercentage of rated dissipation-50 °C100 °C50 °C0 °C150 °C0 %60 %40 %20 %100 %80 %70 °C-55 °C-10 °C85 °C125 °C155 °CLower category temperature (LCT)Upper category temperature (UCT)-100 °C200 °CStability class 0,1; 0,05Stability class 0,25Stability class 2; 1; 0,5 Figure 2 – Derating curve
Refer to Table 6 for the category temperatures of the stability classes. 1.3 Resistance range and tolerance on rated resistance 1.3.1 Version A The following combinations of temperature coefficient and tolerance on rated resistance may be approved only. Products from this extent shall be used for the Qualification approval according to 2.2.1 and for the Quality conformance inspection according to 2.3. Resistance values of an 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 requirements of the closest stability class (e.g. Style B 1 % > 10 MΩ shall fulfil the requirements of stability class 2).
EN 140101-806:2008 – 8 – Table 3a – Resistance range and tolerance on rated resistance for Version A Style Tolerance on rated resistance Temperature coefficient Resistance
range Stability class c % Code a 10-6/K b A ± 5 J ± 50 0,22 Ω to < 1 Ω 1 ± 1 F ± 50 1 Ω to < 10 Ω 0,5 ± 50; ± 25 10 Ω to 332 kΩ 0,5 10 Ω to 332 kΩ 0,25 > 332 kΩ to 10 MΩ 2 ± 0,5 D ± 50; ± 25 10 Ω to 332 kΩ 0,25 10 Ω to 332 kΩ 0,5 ± 0,25 C ± 25; ± 15; ± 10 22 Ω to 332 kΩ 0,25 ± 25; ± 15; ± 10; ± 5 43 Ω to < 100 Ω 0,1 100 Ω to 100 kΩ 0,05 > 100 kΩ to 221 kΩ 0,1 ± 0,1 B ± 25; ± 15; ± 10 43 Ω to 332 kΩ 0,25 ± 25; ± 15; ± 10; ± 5 43 Ω to < 100 Ω 0,1 100 Ω to 100 kΩ 0,05 > 100 kΩ to 221 kΩ 0,1 B ± 5 J ± 50 0,22 Ω to < 1 Ω 1 > 10 MΩ to 22 MΩ 2 ± 1 F ± 50 1 Ω to < 10 Ω 0,5 ± 50; ± 25 10 Ω to 1 MΩ 0,5 10 Ω to 1 MΩ 0,25 > 1 MΩ to 10 MΩ 2 ± 0,5 D ± 50; ± 25 10 Ω to 1 MΩ 0,25 10 Ω to 1 MΩ 0,5 ± 0,25 C ± 25; ± 15; ± 10 22 Ω to 1 MΩ 0,25 ± 25; ± 15; ± 10; ± 5 43 Ω to < 100 Ω 0,1 100 Ω to 270 kΩ 0,05 > 270 kΩ to 510 kΩ 0,1 ± 0,1 B ± 25; ± 15; ± 10 43 Ω to 1 MΩ 0,25 ± 25; ± 15; ± 10; ± 5 43 Ω to < 100 Ω 0,1 100 Ω to 270 kΩ 0,05 > 270 kΩ to 510 kΩ 0,1
– 9 – EN 140101-806:2008 Table 3a – Resistance range and tolerance on rated resistance for Version A (continued) Style Tolerance on rated resistance Temperature coefficient Resistance
range Stability class b % Code a 10-6/K b C ± 5 J ± 50 0,22 Ω to < 1 Ω 1 ± 1 F ± 50 1 Ω to < 10 Ω 0,5 ± 50; ± 25 10 Ω to 2,43 MΩ 0,5 10 Ω to 2,43 MΩ 0,25 > 2,43 MΩ to 22 MΩ 2 ± 0,5 D ± 50; ± 25 10 Ω to 2,43 MΩ 0,25 10 Ω to 2,43 MΩ 0,5 ± 0,25 C ± 25; ± 15; ± 10 22 Ω to 1,5 MΩ 0,25 ± 25; ± 15; ± 10; ± 5 43 Ω to < 100 Ω 0,1 100 Ω to 470 kΩ 0,05 > 470 kΩ to 1 MΩ 0,1 ± 0,1 B ± 25; ± 15; ± 10 43 Ω to 1,5 MΩ 0,25 ± 25; ± 15; ± 10; ± 5 43 Ω to < 100 Ω 0,1 100 Ω to 470 kΩ 0,05 > 470 kΩ to 1 MΩ 0,1 D ± 5 J ± 50 0,22 Ω to < 1 Ω 1 ± 1 F ± 50 1 Ω to < 10 Ω 0,5 ± 50; ± 25 10 Ω to 2,43 MΩ 0,5 10 Ω to 2,43 MΩ 0,25 > 2,43 MΩ to 22 MΩ 2 ± 0,5 D ± 50; ± 25 10 Ω to 2,43 MΩ 0,25 10 Ω to 2,43 MΩ 0,5 ± 0,25 C ± 25; ± 15; ± 10 22 Ω to 1,5 MΩ 0,25 ± 25; ± 15; ± 10; ± 5 43 Ω to < 100 Ω 0,1 100 Ω to 470 kΩ 0,05 > 470 kΩ to 1 MΩ 0,1 ± 0,1 B ± 25; ± 15; ± 10 43 Ω to 1,5 MΩ 0,25 ± 25; ± 15; ± 10; ± 5 43 Ω to < 100 Ω 0,1 100 Ω to 470 kΩ 0,05 > 470 kΩ to 1 MΩ 0,1 0 Ω resistors according to Table 2d for styles A and B. a Code letters according to EN 60062. b For the category temperatures of stability classes refer to Table 6.
EN 140101-806:2008 – 10 – 1.3.2 Version E The following combinations of temperature coefficient, tolerance on rated resistance, resistance range and E-series according to IEC 60063 are permitted only. Products from this extent shall be used for the Qualification approval according to 2.2.2 and for the Quality conformance inspection according to 2.3. Table 3b – Resistance range and tolerance on rated resistance for Version E Style Tolerance on rated resistance Temperature coefficient Resistance
range Stability class b E series % Code a 10-6/K A ± 1 F ± 50 1 Ω to 332 kΩ 0,5 E96 340 kΩ to 5,11 MΩ 2 ± 0,5 D ± 25 49,9 Ω to 332 kΩ 0,5 E96 340 kΩ to 511 kΩ 2 ± 0,1 B ± 15 100 Ω to 332 kΩ 0,25 E192 B ± 1 F ± 50 1 Ω to 1 MΩ 0,5 E96 1,02 MΩ to 5,11 MΩ 1 5,23 MΩ to 10 MΩ 2 ± 0,5 D ± 25 10 Ω to 1 MΩ 0,5 E96 ± 0,1 B ± 15 100 Ω to 499 kΩ 0,25 E192 C ± 1 F ± 50 1 Ω to 2,43 MΩ 0,5 E96 2,49 MΩ to 5,11 MΩ 1 5,23 kΩ to 10 MΩ 2 ± 0,5 D ± 25 10 Ω to 1 MΩ 0,5 E96 ± 0,1 B ± 15 100 Ω to 681 kΩ 0,25 E192 D ± 1 F ± 50 1 Ω to 2,43 MΩ 0,5 E96 2,49 MΩ to 5,11 MΩ 1 5,23 MΩ to 21,5 MΩ 2 ± 0,5 D ± 25 10 Ω to 1,5 MΩ 0,5 E96 ± 0,1 B ± 15 100 Ω to 1 MΩ 0,25 E192 0 Ω resistors according to Table 2d for styles A and B. a Code letters according to EN 60062. b For the category temperatures of stability classes refer to Table 6.
– 11 – EN 140101-806:2008 1.4 Variation of resistance with temperature and temperature rise Table 4 – Temperature coefficients and percentage change of resistance Temperature coefficient Limit of resistance change ∆R/R %
10-6/K Code a Code b LCT / Reference temp. °C Reference temperature / UCT °C
-55 / 20 -10 / 20 20 / 85 20 / 125 20 / 155 ± 50 R C ± 0,375 ± 0,150 ± 0,325 ± 0,525 ± 0,675 ± 25 Q D ± 0,188 ± 0,075 ± 0,163 ± 0,262 ± 0,338 ± 15 P E ± 0,113 ± 0,045 ± 0,098 ± 0,158 — ± 10 N — ± 0,075 ± 0,030 ± 0,065 ± 0,105 — ± 5 M — — ± 0,015 ± 0,033 — — a Code letters according to EN 60062. b Historical code letters according to CECC 40 101-806, for information only.
Table 5 – Limits of temperature rise Stability class Limit of temperature rise
at rated dissipation 2; 1; 0,5 Tr ≤ 85 K 0,25 Tr ≤ 55 K 0,1; 0,05 Tr ≤ 15 K
1.5 Climatic categories Table 6 – Climatic categories Stability class Climatic category LCT / UCT / Duration 2; 1; 0,5 55 / 155 / 56 0,25 55 / 125 / 56 0,1; 0,05 55 / 085 / 56
EN 140101-806:2008 – 12 – 1.6 Limits for change of resistance at tests Table 7a – Limits for change of resistance at tests Stability class Limit of resistance change ∆R/R EN 60115-1 a, 4.23 Climatic sequence 4.24 Damp heat, steady state 4.25.3 Endurance at upper category temperature EN 60115-1 a, 4.25.1 Endurance at 70 °C
EN 60115-1 a, 4.13 Overload 4.16 Robustness of
terminations 4.18 Resistance to
soldering heat 4.19 Rapid change
of temperature, 5 cycles 4.22 Vibration 1 000 h Extended, 8 000 h 2 ± (2 % R + 0,1 Ω) c ± (0,5 % R + 0,05 Ω) b ± (1 % R + 0,05 Ω) b ± (0,5 % R + 0,05 Ω) 1 ± (1 % R + 0,05 Ω) d ± (0,5 % R + 0,05 Ω) b ± (1 % R + 0,05 Ω) b ± (0,25 % R + 0,05 Ω) 0,5 ± (0,5 % R + 0,05 Ω) ± (0,5 % R + 0,05 Ω) ± (1 % R + 0,05 Ω) ± (0,1 % R + 0,02 Ω) 0,25 ± (0,25 % R + 0,05 Ω) ± (0,25 % R + 0,05 Ω) ± (0,5 % R + 0,05 Ω) ± (0,05 % R + 0,01 Ω) 0,1 ± (0,1 % R + 0,02 Ω) ± (0,1 % R + 0,02 Ω) ± (0,25 % R + 0,05 Ω) ± (0,05 % R + 0,01 Ω) 0,05 ± (0,05 % R + 0,01 Ω) ± (0,05 % R + 0,01 Ω) ± (0,1 % R + 0,02 Ω) ± (0,05 % R + 0,01 Ω) a EN 60115-1:2001 + A1:2001. b Tightening of the general definition of stability classes against the requirements of EN 140100:2008, 2.1.4. c +(2 % R + 0,05 Ω)/-(0,5 % R + 0,05 Ω) for endurance at upper category temperature, see also b. d +(1 % R + 0,05 Ω)/-(0,5 % R + 0,05 Ω) for endurance at upper category temperature, see also b.
Table 7b – Limits for change of resistance at tests
Stability class Limit of resistance change ∆R/R
EN 60115-1 a, 4.19 Rapid change
of temperature, ≥ 100 cycles EN 60115-1 a, 4.27 Single pulse
high voltage
overload test EN 60115-1 a, 4.27 Periodic
electric
overload EN 60115-1 a, 4.40 Electrostatic discharge b 2 c ± (0,5 % R + 0,05 Ω) ± (0,5 % R + 0,05 Ω) ± (1 % R + 0,05 Ω) ± (0,5 % R + 0,05 Ω) 1 0,5 0,25 ± (0,25 % R + 0,05 Ω) 0,1 0,05 a EN 60115-1:2001 + A1:2001. b Human body model (HBM) according to EN 61340-3-1, 3 positive + 3 negative discharges. c Tightening of the general definition of stability classes against the requirements of EN 140100:2008, 2.1.4
– 13 – EN 140101-806:2008 1.7 Non-linear properties If for resistors in the range 10 Ω ≤ R ≤ 10 MΩ measurement of non-linearity is required according to 2.1.2,
the measured values shall be above the limits given in the diagram below. The resistors shall be tested according to IEC/TR 60440 where the test voltage shall be the rated voltage. Resistance value RAttenuation of 3rd Harmonic A310 Ω100 Ω1 kΩ10 kΩ100 kΩ1 MΩ10 MΩ130 dB120 dB110 dB100 dB90 dB80 dB70 dB60 dBStyle AStyle DStyle CStyle B Figure 3 – Limits of non-linearity in resistance 1.8 Tests related to soldering 1.8.1 Severities for solderability testing Solderability testing shall be preceded by an accelerated ageing according to IEC 60068-2-20, Test Ta, Ageing 3a: 4 h at 155 °C dry heat. To prove the compatibility of resistors according to this specification with lead-free solder, e.g. SnCu, SnCuNi, SnAg or SnAgCu, and traditional SnPb solder, solderability shall be tested with both types of solder. a) Solderability with traditional SnPb solder shall be tested according to IEC 60068-2-20, Test Ta, solder bath method, with the following conditions:
solder alloy: Sn60Pb40 or Sn63Pb37;
solder bath temperature: (235 ± 5) °C;
immersion time: (2 ± 0,2) s.
EN 140101-806:2008 – 14 – b) Solderability with lead-free solder shall be tested according to IEC 60068-2-20, Test Ta, solder bath method, with the following conditions:
solder alloy: Sn99,3Cu0,7;
solder bath temperature: (250 ± 5) °C;
immersion time: (3 ± 0,3) s,
or
solder alloy: Sn96,5Ag3,0Cu0,5;
solder bath temperature: (245 ± 5) °C;
immersion time: (3 ± 0,3) s. 1.8.2 Severities for testing resistance to soldering heat The severity of the resistance to soldering heat test is determined by the peak temperature and by the temperature slopes before and after the dwell time at the peak temperature. The choice of the solder alloy from the range given below is not known to have any impact on the results of this test. Resistance to soldering heat for a conventional SnPb soldering process and for a lead-free soldering process shall be covered by one test and therefore tested according to IEC 60068-2-20, Test Tb, solder bath method with the following conditions:
solder alloy: any alloy SnPb or SnCu or SnAgCu or SnAg;
solder bath temperature: (270 ± 5) °C;
immersion time: (10 ± 1) s. 1.9 Marking, packaging and ordering designation 1.9.1 Marking of the component The resistor shall be marked with the rated resistance and tolerance on rated resistance according to EN 60062:2005, 3.4 (colour code) or according to EN 60062:2005, 4.2 (alphanumeric code). Marking of the temperature coefficient and of any other item from the list of EN 60115-1:2001 + A1:2001, 2.4.1 shall be the choice of the manufacturer. NOTE 0 Ω Resistors are marked with one black colour band or with the characters “000”. 1.9.2 Taping Components may be taped or untaped. Taping shall be in accordance with EN 60286-1.
1.9.3 Marking of the packaging The packaging of the component shall be marked with ordering information in accordance to 1.9.4 and additionally with – CECC or IECQ sign of conformity, – CECC or IECQ manufacturer code, – NATO manufacturer code (only Version E, if required), – date code of manufacture according to EN 60062. Additional information is permissible.
– 15 – EN 140101-806:2008 1.9.4 Ordering information Orders for resistors covered by this specification shall contain the following information: – detail specification number; – assessment level; – style; – temperature coefficient; – rated resistance; – tolerance on rated resistance; – failure rate level (only for Version E); – form of delivery, packaging method (in addition to the ordering information given in the examples below). Example of the ordering information for 4,75 kΩ resistors: Version A: EN140101–806EZBR4K75FE0 Version E (with failure rate level): EN140101–806EZBR4K75FE7 Example of the ordering information for 0 Ω resistors: Version A: EN140101–806EZB–0R00–E0 Version E (with failure rate level): EN140101–806EZB–0R00–E7 The elements used in this ordering information have the following meaning: EN140101–806 detail specification number; EZ assessment level; B style (see Table 1); R temperature coefficient according to EN 60062 (see Table 4); 4K75 resistance value according to EN 60062, 4 characters; F tolerance on rated resistance (see Table 3a or Table 3b); E0; E7 failure rate level according to EN 60115-1:2001 + A1:2001, Table ZB.1. 1.10 Additional information (not for inspection purpose) 1.10.1 Storage The permitted storage time is 20 years under the conditions of EN 60115-1:2001 + A1:2001, 2.7. Solderability and resistance may be affected by storage. Therefore test of solderability and measurement of resistance are recommended before delivery if the storage time exceeds two years. 1.10.2 Mounting The resistors are suitable for mounting on all common printed boards and flexible foils.
EN 140101-806:2008 – 16 – 1.10.3 Soldering process The resistors are suitable for all soldering methods according to EN 61760-1. This includes full compatibility with – lead-free solder, e.g. SnCu, SnCuNi, SnAg or SnAgCu, – conventional SnPb solder. 1.10.4 Use of cleaning solvents For the removal of flux residues the following agents may be used: – alcohol, such as ethanol, propanol, isopropanol or butanol; – aqueous solutions; – deionized water. Reaction time of the solvent shall not exceed 5 min. Consultation with the resistor manufacturer is recommended if the use of other cleansing agents is intended. 1.10.5 Pulse load capability 1.10.5.1 General The pulse load capability defines the ability of a resistor to withstand short overloads within the provided working period. The pulse load capability is limited by the maximum pulse load Pi, max and the maximum pulse voltage Ui, max both depending on a given pulse duration ti. The following condition shall be considered: 1.10.5.2 Average pulse power
The average pulse load Pshall not exceed the rated dissipation P70 or the derated permissible dissipation Pϑ according to Figure 2. For resistance values above the critical resistance the rated dissipation is determined by the resistance value and the limiting element voltage Umax. The average pulse load is calculated to
∫⋅=21d)(²1pttttuRt
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