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IEC 60384-24
Edition 3.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Fixed capacitors for use in electronic equipment –
Part 24: Sectional specification – Fixed tantalum electrolytic surface mount
capacitors with conductive polymer solid electrolyte
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IEC 60384-24
Edition 3.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Fixed capacitors for use in electronic equipment –
Part 24: Sectional specification – Fixed tantalum electrolytic surface mount
capacitors with conductive polymer solid electrolyte
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.060.40; 31.060.50 ISBN 978-2-8322-4176-9
– 2 – IEC 60384-24:2021 RLV © IEC 2021
CONTENTS
FOREWORD. 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Preferred ratings and characteristics . 8
4.1 Preferred characteristics . 8
4.2 Preferred values of ratings . 8
4.2.1 Nominal capacitance (C ) . 8
N
4.2.2 Tolerance on nominal capacitance . 8
4.2.3 Rated voltage (U ) . 9
R
4.2.4 Category voltage (U ) . 9
C
4.2.5 Surge voltage (U or U ) . 9
RS CS
4.2.6 Rated temperature . 9
5 Test and measurement procedures . 10
5.1 General . 10
5.2 Preliminary drying . 10
5.3 Measuring conditions . 10
5.4 Mounting . 10
5.4.1 General . 10
5.4.2 Initial inspections . 10
5.4.3 Test conditions . 10
5.4.4 Final inspections and requirements . 10
5.5 Visual examination and check of dimensions . 10
5.5.1 General . 10
5.5.2 Visual examination and check of dimensions . 10
5.5.3 Requirements . 10
5.6 Electrical tests . 11
5.6.1 Leakage current . 11
5.6.2 Capacitance . 11
5.6.3 Tangent of loss angle (tan δ) . 11
5.6.4 Equivalent series resistance (ESR) (if required) . 12
5.7 Resistance to soldering heat . 12
5.7.1 General . 12
5.7.2 Initial inspections . 12
5.7.3 Test conditions . 12
5.7.4 Recovery . 12
5.7.5 Final inspections and requirements . 12
5.8 Solderability . 12
5.8.1 General . 12
5.8.2 Final inspections and requirements . 12
5.9 Shear test . 12
5.10 Substrate bending test (if required) . 13
5.10.1 General . 13
5.10.2 Initial inspections . 13
5.10.3 Test conditions . 13
5.10.4 Final inspections and requirements . 13
5.11 Rapid change of temperature . 13
5.11.1 General . 13
5.11.2 Initial inspections . 13
5.11.3 Test conditions . 13
5.11.4 Recovery . 13
5.11.5 Final inspections and requirements . 13
5.12 Climatic sequence . 13
5.12.1 General . 13
5.12.2 Initial inspections . 13
5.12.3 Dry heat . 14
5.12.4 Damp heat, cyclic, test Db, first cycle . 14
5.12.5 Cold. 14
5.12.6 Damp heat, cyclic, test Db, remaining cycles . 14
5.12.7 Recovery . 14
5.12.8 Final inspections and requirements . 14
5.13 Damp heat, steady state . 14
5.13.1 General . 14
5.13.2 Initial inspections . 14
5.13.3 Test conditions . 14
5.13.4 Recovery . 14
5.13.5 Final inspections and requirements . 14
5.14 Characteristics at high and low temperature . 15
5.14.1 General . 15
5.14.2 Initial inspections and requirements . 15
5.15 Surge voltage . 15
5.15.1 General . 15
5.15.2 Initial inspections . 15
5.15.3 Test conditions . 15
5.15.4 Recovery . 15
5.15.5 Final inspections and requirements . 16
5.16 Endurance . 16
5.16.1 General . 16
5.16.2 Initial inspections . 16
5.16.3 Test conditions . 16
5.16.4 Recovery . 16
5.16.5 Final inspections and requirements . 16
5.17 Component solvent resistance (if required) . 16
5.18 Solvent resistance of marking (if required) . 16
5.19 High surge current (if required) . 16
5.20 Storage at high temperature . 16
5.20.1 General . 16
5.20.2 Initial inspections . 16
5.20.3 Test conditions . 17
5.20.4 Recovery . 17
5.20.5 Final inspections and requirements . 17
6 Marking . 17
6.1 General . 17
6.2 Information for marking . 17
6.3 Marking on capacitors . 17
– 4 – IEC 60384-24:2021 RLV © IEC 2021
6.4 Marking on packaging .
...