Fixed capacitors for use in electronic equipment - Part 21: Sectional specification - Fixed surface mount multilayer capacitors of ceramic dielectric, Class 1

IEC 60384-21:2019 is available as IEC 60384-21:2019 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60384-21:2019 is applicable to fixed unencapsulated surface mount multilayer capacitors of ceramic dielectric, Class 1, for use in electronic equipment. These capacitors have metallized connecting pads or soldering strips and are intended to be mounted on printed boards, or directly onto substrates for hybrid circuits. Capacitors for electromagnetic interference suppression are not included, but are covered by IEC 60384-14. The object of this document is to prescribe preferred ratings and characteristics and to select from IEC 60384-1 the appropriate quality assessment procedures, tests and measuring methods and to give general performance requirements for this type of capacitor. Test severities and requirements prescribed in detail specifications referring to this sectional specification are of equal or higher performance levels; lower performance levels are not permitted. This edition includes the following significant technical changes with respect to the previous edition:
- revision of the structure in accordance with ISO/IEC Directives, Part 2:2016 to the extent practicable, and for harmonizing with IEC 60384-22;
- deletion of the description on the permissible reactive power in 6.2.2 because it is not appropriate for the purposes of this document;
- the dimensions of 0201M in Annex A have been added.

Condensateurs fixes utilisés dans les équipements électroniques - Partie 21: Spécification intermédiaire – Condensateurs multicouches fixes à diélectriques en céramique pour montage en surface, de Classe 1

IEC 60384-21:2019 est disponible sous forme de IEC 60384-21:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 60384-21:2019 est applicable aux condensateurs multicouches fixes à diélectriques en céramique pour montage en surface non encapsulés, Classe 1, utilisés dans les équipements électroniques. Ces condensateurs possèdent des pastilles de connexion métallisées ou des bandes de brasure et sont destinés à être montés sur des cartes imprimées ou directement sur des substrats de circuits hybrides. Les condensateurs d'antiparasitage ne sont pas inclus, mais ils sont couverts par l'IEC 60384-14. L'objet du présent document est de prescrire des caractéristiques et des valeurs assignées préférentielles et de sélectionner à partir de l'IEC 60384-1 les procédures d'assurance de la qualité, les essais et les méthodes de mesure appropriées et de donner les exigences de performance générales pour ce type de condensateur. Les exigences et les sévérités des essais prescrits dans les spécifications particulières se référant à la présente spécification intermédiaire sont d'un niveau de performance supérieur ou égal, des niveaux de performance inférieurs ne sont pas admis. La présente édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- révision de la structure conformément aux directives ISO/IEC, Partie 2:2016, dans la mesure du possible, et pour l'harmonisation avec l'IEC 60384-22;
- suppression de la description de la puissance réactive admissible en 6.2.2, parce qu'elle n'est pas adaptée aux besoins du présent document;
- les dimensions de 0201M à l'Annexe A ont été ajoutées.

General Information

Status
Published
Publication Date
28-Jan-2019
Current Stage
PPUB - Publication issued
Completion Date
29-Jan-2019
Ref Project

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IEC 60384-21:2019 - Fixed capacitors for use in electronic equipment - Part 21: Sectional specification - Fixed surface mount multilayer capacitors of ceramic dielectric, Class 1
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IEC 60384-21
Edition 3.0 2019-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed capacitors for use in electronic equipment –
Part 21: Sectional specification – Fixed surface mount multilayer capacitors
of ceramic dielectric, Class 1
Condensateurs fixes utilisés dans les équipements électroniques –
Partie 21: Spécification intermédiaire – Condensateurs multicouches fixes à
diélectriques en céramique pour montage en surface, de Classe 1
IEC 60384-21:2019-01(en-fr)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60384-21
Edition 3.0 2019-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed capacitors for use in electronic equipment –
Part 21: Sectional specification – Fixed surface mount multilayer capacitors
of ceramic dielectric, Class 1
Condensateurs fixes utilisés dans les équipements électroniques –
Partie 21: Spécification intermédiaire – Condensateurs multicouches fixes à
diélectriques en céramique pour montage en surface, de Classe 1
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.10 ISBN 978-2-8322-6389-1

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – IEC 60384-21:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 6

1 Scope .............................................................................................................................. 8

2 Normative references ...................................................................................................... 8

3 Terms and definitions ...................................................................................................... 8

4 Information to be given in a detail specification ................................................................ 9

4.1 General ................................................................................................................... 9

4.2 Outline drawing and dimensions ........................................................................... 10

4.3 Mounting ............................................................................................................... 10

4.4 Rating and characteristics ..................................................................................... 10

4.4.1 General ......................................................................................................... 10

4.4.2 Nominal capacitance range ............................................................................ 10

4.4.3 Particular characteristics ............................................................................... 10

4.4.4 Soldering ....................................................................................................... 10

4.5 Marking ................................................................................................................. 11

5 Marking ......................................................................................................................... 11

5.1 General ................................................................................................................. 11

5.2 Information for marking ......................................................................................... 11

5.3 Marking on the body ............................................................................................. 11

5.4 Requirements for marking ..................................................................................... 11

5.5 Marking of the packaging ...................................................................................... 11

5.6 Additional marking ................................................................................................ 11

6 Preferred ratings and characteristics ............................................................................. 11

6.1 Preferred characteristics ....................................................................................... 11

6.2 Preferred values of ratings .................................................................................... 12

6.2.1 Rated temperature (T ) ................................................................................. 12

6.2.2 Rated voltage (U ) ........................................................................................ 12

6.2.3 Category voltage (U ) ................................................................................... 12

6.2.4 Preferred values of nominal capacitance and associated tolerance

values ............................................................................................................ 12

6.2.5 Temperature coefficient (α) ........................................................................... 13

6.2.6 Dimensions .................................................................................................... 14

7 Quality assessment procedures ..................................................................................... 15

7.1 Primary stage of manufacture ............................................................................... 15

7.2 Structurally similar components ............................................................................ 15

7.3 Certified records of released lots .......................................................................... 15

7.4 Qualification approval ........................................................................................... 15

7.4.1 General ......................................................................................................... 15

7.4.2 Qualification approval on the basis of the fixed sample size procedures ........ 15

7.4.3 Tests ............................................................................................................. 16

7.5 Quality conformance inspection ............................................................................ 21

7.5.1 Formation of inspection lots ........................................................................... 21

7.5.2 Test schedule ................................................................................................ 21

7.5.3 Delayed delivery ............................................................................................ 21

7.5.4 Assessment levels ......................................................................................... 21

8 Test and measurement procedures ................................................................................ 22

8.1 General ................................................................................................................. 22

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IEC 60384-21:2019 © IEC 2019 – 3 –

8.2 Preliminary drying ................................................................................................. 22

8.3 Measuring conditions ............................................................................................ 23

8.4 Mounting ............................................................................................................... 23

8.5 Visual examination and check of dimensions ........................................................ 23

8.5.1 General ......................................................................................................... 23

8.5.2 Visual examination ........................................................................................ 23

8.5.3 Requirements ................................................................................................ 23

8.6 Electrical tests ...................................................................................................... 25

8.6.1 Capacitance .................................................................................................. 25

8.6.2 Tangent of loss angle (tan δ) ......................................................................... 25

8.6.3 Insulation resistance ...................................................................................... 26

8.6.4 Voltage proof ................................................................................................. 26

8.7 Temperature coefficient (α) and temperature cycle drift ........................................ 27

8.7.1 General ......................................................................................................... 27

8.7.2 Preliminary drying .......................................................................................... 27

8.7.3 Measuring conditions ..................................................................................... 27

8.7.4 Requirements ................................................................................................ 27

8.8 Shear test ............................................................................................................. 28

8.9 Substrate bending test .......................................................................................... 28

8.9.1 General ......................................................................................................... 28

8.9.2 Initial measurement ....................................................................................... 28

8.9.3 Final inspection ............................................................................................. 28

8.10 Resistance to soldering heat ................................................................................. 28

8.10.1 General ......................................................................................................... 28

8.10.2 Initial measurement ....................................................................................... 28

8.10.3 Test conditions .............................................................................................. 28

8.10.4 Recovery ....................................................................................................... 30

8.10.5 Final inspection, measurements and requirements......................................... 30

8.11 Solderability .......................................................................................................... 30

8.11.1 General ......................................................................................................... 30

8.11.2 Test conditions .............................................................................................. 30

8.11.3 Recovery ....................................................................................................... 31

8.11.4 Final inspection, measurements and requirements......................................... 31

8.12 Rapid change of temperature ................................................................................ 31

8.12.1 General ......................................................................................................... 31

8.12.2 Initial measurement ....................................................................................... 31

8.12.3 Number of cycles ........................................................................................... 31

8.12.4 Recovery ....................................................................................................... 32

8.12.5 Final inspection, measurements and requirements......................................... 32

8.13 Climatic sequence................................................................................................. 32

8.13.1 General ......................................................................................................... 32

8.13.2 Initial measurement ....................................................................................... 32

8.13.3 Dry heat ........................................................................................................ 32

8.13.4 Damp heat, cyclic, Test Db, first cycle ........................................................... 32

8.13.5 Cold............................................................................................................... 32

8.13.6 Damp heat, cyclic, Test Db, remaining cycles ................................................ 32

8.13.7 Final inspection, measurements and requirements......................................... 33

8.14 Damp heat, steady state ....................................................................................... 33

8.14.1 General ......................................................................................................... 33

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– 4 – IEC 60384-21:2019 © IEC 2019

8.14.2 Initial measurement ....................................................................................... 33

8.14.3 Test conditions .............................................................................................. 33

8.14.4 Recovery ....................................................................................................... 34

8.14.5 Final inspection, measurements and requirements......................................... 34

8.15 Endurance ............................................................................................................ 34

8.15.1 General ......................................................................................................... 34

8.15.2 Initial measurement ....................................................................................... 35

8.15.3 Test conditions .............................................................................................. 35

8.15.4 Recovery ....................................................................................................... 35

8.15.5 Final inspection, measurements and requirements......................................... 35

8.16 Robustness of terminations (only for capacitors with strip termination) .................. 36

8.16.1 General ......................................................................................................... 36

8.16.2 Test conditions .............................................................................................. 36

8.16.3 Final inspection and requirements ................................................................. 36

8.17 Component solvent resistance (if required) ........................................................... 36

8.18 Solvent resistance of the marking (if required) ...................................................... 36

8.19 Accelerated damp heat, steady state (if required) ................................................. 36

8.19.1 General ......................................................................................................... 36

8.19.2 Initial measurement ....................................................................................... 37

8.19.3 Conditioning .................................................................................................. 37

8.19.4 Recovery ....................................................................................................... 37

8.19.5 Final measurements ...................................................................................... 37

Annex A (normative) Guidance for the specification and coding of dimensions of fixed

surface mount multilayer capacitors of ceramic dielectric, Class 1 ........................................ 38

Annex B (informative) Combination of temperature coefficient and tolerance for the

reference temperature of 25 °C ............................................................................................. 39

Annex X (informative) Cross-reference for reference to IEC 60384-21:2011 ......................... 40

Bibliography .......................................................................................................................... 41

Figure 1 – Fault: crack or fissure........................................................................................... 23

Figure 2 – Fault: crack or fissure........................................................................................... 23

Figure 3 – Separation or delamination .................................................................................. 24

Figure 4 – Exposed electrodes .............................................................................................. 24

Figure 5 – Principal faces ..................................................................................................... 24

Figure 6 – Reflow temperature profile ................................................................................... 29

Figure A.1 – Dimensions ....................................................................................................... 38

Table 1 – Preferred tolerances on nominal capacitance ........................................................ 12

Table 2 – Nominal temperature coefficient and tolerance ...................................................... 13

Table 3 – Combination of temperature coefficient and tolerance ........................................... 14

Table 4 – Fixed sample size test plan for qualification approval – Assessment level EZ ........ 17

Table 5 – Tests schedule for qualification approval ............................................................... 18

Table 6 – Lot-by-lot inspection .............................................................................................. 22

Table 7 – Periodic tests ........................................................................................................ 22

Table 8 – Tangent of loss angle limits ................................................................................... 25

Table 9 – Test voltages ......................................................................................................... 27

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IEC 60384-21:2019 © IEC 2019 – 5 –

Table 10 – Temperature cyclic drift limits .............................................................................. 28

Table 11 – Reflow temperature profiles for Sn-Ag-Cu alloy ................................................... 29

Table 12 – Maximum capacitance change ............................................................................. 30

Table 13 – Maximum capacitance change ............................................................................. 32

Table 14 – Number of damp heat cycles ............................................................................... 33

Table 15 – Final inspection, measurements and requirements .............................................. 33

Table 16 – Test conditions for damp heat, steady state ......................................................... 34

Table 17 – Final inspection, measurements and requirements .............................................. 34

Table 18 – Endurance test conditions (U = U ) .................................................................. 35

C R

Table 19 – Endurance test conditions (U ≠ U ) .................................................................. 35

C R

Table 20 – Final inspection, measurements and requirements .............................................. 36

Table 21 – Initial requirements .............................................................................................. 37

Table 22 – Conditioning ........................................................................................................ 37

Table A.1 – Dimensions ........................................................................................................ 38

Table B.1 – Combination of temperature coefficient and tolerance for the reference

temperature of 25 °C ............................................................................................................ 39

Table X.1 – Reference to IEC 60384-21 for clause/subclause ............................................... 40

Table X.2 – Reference to IEC 60384-21 for figure/table ........................................................ 40

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– 6 – IEC 60384-21:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –
Part 21: Sectional specification –
Fixed surface mount multilayer capacitors
of ceramic dielectric, Class 1
FOREWORD

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International Standard IEC 60384-21 has been prepared by IEC technical committee 40:

Capacitors and resistors for electronic equipment.

This third edition cancels and replaces the second edition published in 2011. This edition

constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) revision of the structure in accordance with ISO/IEC Directives, Part 2:2016 to the extent

practicable, and for harmonizing with IEC 60384-22;

b) deletion of the description on the permissible reactive power in 6.2.2 because it is not

appropriate for the purposes of this document;
---------------------- Page: 8 ----------------------
IEC 60384-21:2019 © IEC 2019 – 7 –
c) the dimensions of 0201M in Annex A have been added.
The text of this International Standard
...

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