High frequency inductive components - Part 1: Fixed surface mount inductors for use in electronic and telecommunication equipment

IEC 62674-1:2012 applies to fixed surface mount inductors and ferrite beads. The object of this standard is to define the terms necessary to describe the inductors covered by this standard, provide recommendations for preferred characteristics, recommended performance, test methods and general guidance.

Composants inductifs à haute fréquence - Partie 1: Inductances fixes pour montage en surface utilisées dans les matériels électroniques et les équipements de télécommunications

La CEI 62674-1:2012 s'applique aux inductances fixes pour montage en surface et aux perles de ferrite. La présente norme a pour objet de définir les termes nécessaires pour décrire les inductances couvertes par la présente norme, donner les recommandations pour les caractéristiques préférentielles, les performances recommandées, les méthodes d'essai et les lignes directrices générales.

General Information

Status
Published
Publication Date
11-Oct-2012
Current Stage
PPUB - Publication issued
Start Date
31-Oct-2012
Completion Date
12-Oct-2012
Ref Project

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IEC 62674-1:2012 - High frequency inductive components - Part 1: Fixed surface mount inductors for use in electronic and telecommunication equipment
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IEC 62674-1 ®
Edition 1.0 2012-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High frequency inductive components –
Part 1: Fixed surface mount inductors for use in electronic and
telecommunication equipment
Composants inductifs à haute fréquence –
Partie 1: Inductances fixes pour montage en surface utilisées dans les matériels
électroniques et les équipements de télécommunications

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IEC 62674-1 ®
Edition 1.0 2012-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High frequency inductive components –

Part 1: Fixed surface mount inductors for use in electronic and

telecommunication equipment
Composants inductifs à haute fréquence –

Partie 1: Inductances fixes pour montage en surface utilisées dans les matériels

électroniques et les équipements de télécommunications

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX V
ICS 29.100.10 ISBN 978-2-83220-399-6

– 2 – 62674-1  IEC:2012
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Designation . 7
5 Shape . 9
6 Dimensions . 10
6.1 Shape D . 10
6.2 Shape K . 11
6.3 Tolerance for outline dimensions . 11
7 Ratings and characteristics. 11
7.1 Nominal inductance or impedance . 11
7.2 Tolerance for nominal inductance or impedance . 12
7.3 Operating temperature range . 12
8 Marking . 13
9 Direction marking or shape of polarity. 13
10 Tests and performance requirements . 14
10.1 Standard atmospheric conditions for testing . 14
10.1.1 Standard atmospheric conditions for measurements and tests . 14
10.1.2 Referee condition . 14
10.2 Visual examination and check of dimensions . 14
10.2.1 Visual examination . 14
10.2.2 Dimensions. 14
10.3 Electrical performance tests . 15
10.3.1 Inductance . 15
10.3.2 Q . 18
10.3.3 Impedance . 22
10.3.4 Self-resonant frequency . 22
10.3.5 DC resistance . 24
10.3.6 Rated current . 25
10.4 Mechanical performance tests . 25
10.4.1 Mounting to substrate . 25
10.4.2 Body strength test . 25
10.4.3 Robustness of terminations (electrodes) . 25
10.4.4 Solderability . 26
10.4.5 Resistance to soldering heat. 26
10.4.6 Resistance to dissolution of metallization . 26
10.4.7 Vibration . 27
10.4.8 Resistance to shock . 27
10.5 Environmental and climatic tests . 27
10.5.1 Cold . 27
10.5.2 Dry heat . 28
10.5.3 Change of temperature . 29
10.5.4 Damp heat (steady state) . 29
10.5.5 Component solvent resistance . 30

62674-1  IEC:2012 – 3 –
Bibliography . 31

Figure 1 – Shapes of inductor and ferrite beads (examples) . 9
Figure 2 – Example of circuit for measurement by the bridge method . 15
Figure 3 – Example of circuit for measurement by the vector voltage/current method . 16
Figure 4 – Example of a circuit for measurement by the automatic balancing bridge
method . 17
Figure 5 – Example of circuit for measurement by the series resonance method . 19
Figure 6 – Example of a circuit for measurement by the parallel resonance method . 20
Figure 7 – Tuning characteristics of inductor . 20
Figure 8 – Example of circuit for measurement by the minimum output method . 23
Figure 9 – Example of measuring circuit for DC resistance . 24

Table 1 – Letter code for inductance value . 8
Table 2 – Dimensions for shape D . 10
Table 3 – Dimensions of height for shape D (R 20 series) . 10
Table 4 – Dimensions of height for shape D less than 1,00 mm . 10
Table 5 – Dimensions for shape K . 11
Table 6 – Tolerance for outline dimension and height . 11
Table 7 – E 24 series for nominal inductance or impedance . 12
Table 8 – Tolerance for nominal inductance or impedance . 12
Table 9 – Temperatures to be selected for operating temperature ranges . 12
Table 10 – User reference / Examples of application and operating temperature range . 13
Table 11 – Electrical performance . 26
Table 12 – Combined test conditions for cold . 28
Table 13 – Combined test conditions for dry heat. 28
Table 14 – Test conditions for change of temperature . 29
Table 15 – Test conditions for damp heat (steady state) . 30

– 4 – 62674-1  IEC:2012
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH FREQUENCY INDUCTIVE COMPONENTS –

Part 1: Fixed surface mount inductors for use in electronic
and telecommunication equipment

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and elect
...

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