IEC 60384-16:2019

IEC 60384-16 ®
Edition 3.0 2019-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed capacitors for use in electronic equipment –
Part 16: Sectional specification – Fixed metallized polypropylene film dielectric
DC capacitors
Condensateurs fixes utilisés dans les équipements électroniques –
Partie 16: Spécification intermédiaire – Condensateurs fixes pour courant
continu à diélectrique en film de polypropylène métallisé

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IEC 60384-16 ®
Edition 3.0 2019-09
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Fixed capacitors for use in electronic equipment –

Part 16: Sectional specification – Fixed metallized polypropylene film dielectric

DC capacitors
Condensateurs fixes utilisés dans les équipements électroniques –

Partie 16: Spécification intermédiaire – Condensateurs fixes pour courant

continu à diélectrique en film de polypropylène métallisé

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.30 ISBN 978-2-8322-7334-0

– 2 – IEC 60384-16:2019 © IEC 2019
CONTENTS
FOREWORD . 6
1 General . 8
1.1 Scope . 8
1.2 Object . 8
1.3 Normative references . 8
1.4 Information to be given in a detail specification . 9
1.4.1 General . 9
1.4.2 Outline drawing and dimensions . 9
1.4.3 Mounting . 9
1.4.4 Ratings and characteristics . 10
1.4.5 Marking . 10
1.5 Terms and definitions . 10
1.6 Marking . 11
1.6.1 General . 11
1.6.2 Information for marking . 11
1.6.3 Marking on capacitors . 11
1.6.4 Marking on packaging . 11
2 Preferred ratings and characteristics . 12
2.1 Preferred characteristics . 12
2.2 Preferred values of ratings . 12
2.2.1 Nominal capacitance (C ) . 12
N
2.2.2 Tolerances on nominal capacitance . 12
2.2.3 Nominal capacitance with associated tolerance values . 12
2.2.4 Rated voltage (U ) . 12
R
2.2.5 Category voltage (U ). 13
C
2.2.6 Rated temperature . 13
3 Quality assessment procedures . 13
3.1 Primary stage of manufacture . 13
3.2 Structurally similar components . 13
3.3 Certified records of released lots . 13
3.4 Qualification approval procedures . 13
3.4.1 General . 13
3.4.2 Qualification approval on the basis of the fixed sample size procedures . 13
3.5 Quality conformance inspection . 20
3.5.1 Formation of inspection lots . 20
3.5.2 Test schedule . 21
3.5.3 Delayed delivery . 21
3.5.4 Assessment levels . 21
4 Test and measurement procedures . 22
4.1 Visual examination and check of dimensions . 22
4.1.1 General . 22
4.1.2 Test conditions . 22
4.1.3 Requirements . 22
4.2 Electrical tests . 22
4.2.1 Voltage proof . 22
4.2.2 Capacitance . 23
4.2.3 Tangent of loss angle (tan δ) . 23

4.2.4 Insulation resistance . 24
4.2.5 Inductance (if required) . 26
4.2.6 Characteristics depending on temperature (if required) . 26
4.3 Robustness of terminations . 27
4.3.1 General . 27
4.3.2 Initial inspections . 27
4.3.3 Test method . 27
4.3.4 Final inspections . 27
4.4 Resistance to soldering heat . 27
4.4.1 General . 27
4.4.2 Preconditioning . 27
4.4.3 Test conditions . 27
4.4.4 Final inspections . 27
4.5 Solderability . 27
4.5.1 General . 27
4.5.2 Preconditioning . 28
4.5.3 Test conditions . 28
4.5.4 Final inspections . 28
4.6 Rapid change of temperature . 28
4.6.1 General . 28
4.6.2 Initial inspections . 28
4.6.3 Test conditions . 28
4.6.4 Recovery (if required) . 28
4.6.5 Final inspections . 28
4.7 Vibration . 28
4.7.1 General . 28
4.7.2 Mounting . 28
4.7.3 Test conditions . 28
4.7.4 Final inspections . 29
4.8 Bump (if required) . 29
4.8.1 General . 29
4.8.2 Mounting . 29
4.8.3 Initial inspections . 29
4.8.4 Test conditions . 29
4.8.5 Final inspections . 29
4.9 Shock (if required) . 29
4.9.1 General . 29
4.9.2 Mounting . 29
4.9.3 Initial inspections . 30
4.9.4 Test conditions . 30
4.9.5 Final inspections . 30
4.10 Climatic sequence. 30
4.10.1 General . 30
4.10.2 Initial inspections . 30
4.10.3 Dry heat . 30
4.10.4 Damp heat, cyclic, Test Db, first cycle . 30
4.10.5 Cold. 30
4.10.6 Low air pressure (if required) . 30
4.10.7 Damp heat, cyclic, Test Db, remaining cycles . 31

– 4 – IEC 60384-16:2019 © IEC 2019
4.11 Damp heat, steady state . 31
4.11.1 General . 31
4.11.2 Initial inspections . 31
4.11.3 Test conditions . 31
4.11.4 Recovery (if required) . 31
4.11.5 Final inspections . 32
4.11.6 Humidity robustness grades . 32
4.12 Endurance . 32
4.12.1 General . 32
4.12.2 Initial inspections . 32
4.12.3 Test conditions . 32
4.12.4 Recovery . 32
4.12.5 Final inspections . 32
4.13 Charge and discharge . 32
4.13.1 General . 32
4.13.2 Initial inspections . 32
4.13.3 Test conditions . 33
4.13.4 Recovery (if required) . 34
4.13.5 Final inspections . 34
4.14 Component solvent resistance . 34
4.15 Solvent resistance of the marking . 34
4.16 Sealing . 34
Annex A (normative) Humidity robustness grades for applications, where high stability
under high humidity operating conditions is required. 35
A.1 Scope . 35
A.2 Humidity robustness grades . 35
A.2.1 Standard . 35
A.2.2 Grade (I) robustness under humidity . 35
A.2.3 Grade (II) robustness under high humidity . 35
A.2.4 Grade (III) high robustness under high humidity . 35
A.3 Indication of humidity robustness grades . 36
Bibliography . 37

Table 1 – Preferred values . 11
Table 2 – Preferred combinations of capacitance value series and tolerances . 12
Table 3 – Sampling plan for qualification approval tests, assessment level EZ . 15
Table 4 – Test schedule for qualification approval . 16
Table 5 – Lot-by-lot inspection . 21
Table 6 – Periodic inspection . 22
Table 7 – Combinations of test point and test voltage . 23
Table 8 – Tangent of loss angle limits, 1 kHz . 24
Table 9 – Tangent of loss angle limits, 10 kHz . 24
Table 10 – Insulation resistance requirements . 25

Table 11 – Temperature coefficient factors . 25
Table 12 – Characteristics at lower category temperature . 26
Table 13 – Characteristics at upper category temperature . 27
Table 14 – Preferred severities . 30
Table 15 – Test conditions . 32
Table 16 – Lead spacing . 33

– 6 – IEC 60384-16:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –

Part 16: Sectional specification –
Fixed metallized polypropylene film dielectric DC capacitors

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
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6) All users should ensure that they have the latest edition of this publication.
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60384-16 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 2005. 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 harmonization between other similar kinds of documents;
b) in addition, Clause 4 and all the tables have been reviewed in order to prevent
duplications and contradictions.

The text of this International Standard is based on the following documents:
FDIS Report on voting
40/2686/FDIS 40/2691/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
The list of all parts of the IEC 60384 series, under the general title Fixed capacitors for use in
electronic equipment, can be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 8 – IEC 60384-16:2019 © IEC 2019
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –

Part 16: Sectional specification –
Fixed metallized polypropylene film dielectric DC capacitors

1 General
1.1 Scope
This part of IEC 60384 applies to fixed capacitors with metallized electrodes and poly-
propylene dielectric for use in electronic equipment.
These capacitors can have "self-healing properties" depending on conditions of use. They are
mainly intended for use with direct voltage.
The maximum power to be applied is 500 var at 50 Hz and the maximum peak voltage
is 2 500 V.
The following two grades are covered;
a) Grade 1: for long-life application;
b) Grade 2: for general application.
Capacitors for alternating voltage and pulse applications are not included, but are covered by
IEC 60384-17.
Capacitors for electromagnetic interference suppression are not included, but are covered by
IEC 60384-14.
Capacitors for electrical shock hazard protection (covered by IEC 60065) and fluorescent
lamp and motor capacitors are also excluded.
1.2 Object
The object of this document is to prescribe preferred ratings and characteristics and to select
from IEC 60384-1:2016 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 level, because lower performance levels are
not permitted.
1.3 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60063, Preferred number series for resistors and capacitors
IEC 60068-1:2013, Environmental testing – Part 1: General and guidance
IEC 60384-1:2016, Fixed capacitors for use in electronic equipment – Part 1: Generic
specification
IEC 61193-2:2007, Quality assessment system – Part 2: Selection and use of sampling plans
for inspection of electronic components and packages
IEC 60417, Graphical symbols for use on equipment (available at http://www.graphical-
symbols.info/equipment)
ISO 3, Preferred numbers – Series of preferred numbers
1.4 Information to be given in a detail specification
1.4.1 General
Detail specifications shall be derived from the blank detail specification.
Detail specifications shall not specify requirements inferior to those of the generic, sectional
or blank detail specification. When more severe requirements are included, they shall be
listed in 1.9 of the detail specification and indicated in the test schedules, for example by an
asterisk.
The information given in 1.4.2 may, for convenience, be presented in tabular form.
The following information shall be given in each detail specification and the values quoted
shall preferably be selected from those given in the appropriate clause of this sectional
specification.
1.4.2 Outline drawing and dimensions
There shall be an illustration of the capacitors as an aid to easy recognition and for
comparison of the capacitor with others.
Dimensions and their associated tolerances, which affect interchangeability and mounting,
shall be given in the detail specification. All dimensions shall preferably be stated in
millimetres; however, when the original dimensions are given in inches, the converted metric
dimensions in millimetres shall be added.
Normally, the numerical values shall be given for the length of the body, the width and height
of the body and the wire spacing, or for cylindrical types, the body diameter, and the length
and diameter of the terminals. When necessary, for example, when a number of items
(capacitance values/voltage ranges) are covered by a detail specification, the dimensions and
their associated tolerances shall be placed in a table below the drawing.
The numerical values of the body shall be given as follows:
– width, length and height, or for cylindrical types, diameter and length.
The numerical values of the terminals shall be given as follows:
– width or diameter, length and spacing.
When the configuration is other than described above, the detail specification shall state such
dimensional information as will adequately describe the capacitor.
1.4.3 Mounting
The detail specification shall specify the method of mounting to be applied for normal use and
for the application of the vibration and the bump or shock tests. The design of the capacitor
may be such that special mounting fixtures are required in its use. In this case, the detail
specification shall describe the mounting fixtures and they shall be used in the application of
the vibration and bump or shock tests.

– 10 – IEC 60384-16:2019 © IEC 2019
1.4.4 Ratings and characteristics
1.4.4.1 General
The ratings and characteristics shall be given in accordance with the relevant clauses of this
sectional specification, including the items as specified below.
1.4.4.2 Nominal capacitance range
See 2.2.1.
When products approved in accordance with the detail specification have different ranges, the
following statement should be added:
"The nominal capacitance range available in each voltage range is given in the register of
approvals, available for example on the IECQ on-line certificate system website
www.iecq.org”.
1.4.4.3 Particular characteristics
Additional characteristics may be listed, when they are considered necessary to specify
adequately the component for design and application purposes.
1.4.4.4 Soldering
The detail specification shall prescribe the test methods, severities and requirements
applicable for the solderability and the resistance to the soldering heat test.
1.4.5 Marking
The detail specification shall specify the content of the marking on the capacitor and on the
packaging. When there are deviations from 1.6, these shall be stated in the detail
specification.
1.5 Terms and definitions
For the purposes of this document, the terms and definitions of IEC 60384-1:2016 and the
following apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
1.5.1
performance grade 1 capacitors
capacitors intended for long-life applications with stringent requirements for the
electrical parameters
1.5.2
performance grade 2 capacitors
capacitors for general application where the stringent requirements for
grade 1 are not necessary
1.5.3
stability grade
capacitance drift after climatic and mechanical tests and after endurance tests

Note 1 to entry: The performance grade and the stability grade shall be noted in the detail specification.
1.5.4
performance grade and stability grade combinations
designation for combined performance grade and stability grade
SEE: Table 1
Table 1 – Preferred values
Performance Stability Combination
grade grade designation
1 1.1
2 1.2
2 – 2
Note 1 to entry: The three combinations of performance grades and stability grades concern capacitance stability
and tan δ values. Distinction in performance of the three combinations is shown in Table 4.
1.5.5
rated voltage
maximum DC voltage that can be applied continuously to a capacitor at the rated temperature
Note 1 to entry: The sum of the DC voltage and the peak AC voltage applied to the capacitor shall not exceed the
rated voltage. The value of the peak AC voltage allowed at different frequencies is under consideration.
1.6 Marking
1.6.1 General
See IEC 60384-1:2016, 2.4, with the following details.
1.6.2 Information for marking
Information given in the marking is normally selected from the following list; the relative
importance of each item is indicated by its position in the list:
a) nominal capacitance;
b) rated voltage (DC voltage may be indicated by the symbol     (IEC 60417-5031-2002-
10) or     );
c) tolerance on rated capacitance;
d) year and month (or, year and week) of manufacture;
e) manufacturer's name and/or trademark;
f) climatic category;
g) manufacturer's type designation;
h) reference to the detail specification.
1.6.3 Marking on capacitors
The capacitor shall be clearly marked with a), b) and c) above and with as many as possible
of the remaining items as is considered necessary. Any duplication of information in the
marking on the capacitor should be avoided.
1.6.4 Marking on packaging
The packaging containing the capacitors should be clearly marked with all the information
listed in 1.6.2 as necessary.
– 12 – IEC 60384-16:2019 © IEC 2019
2 Preferred ratings and characteristics
2.1 Preferred characteristics
Preferred climatic categories only shall be given in the preferred characteristics.
The capacitors covered by this sectional specification are classified into climatic categories in
accordance with the general rules given in IEC 60068-1:2013, Annex A.
The lower and upper category temperatures and the duration of the damp heat, steady-state
test shall be chosen from the following:
Lower category temperature: −55 °C, −40 °C, −25 °C and −10 °C;
Upper category temperature: +70 °C, +85 °C, +100 °C and +105 °C;
Duration of the damp heat, steady-state test: 4, 10, 21 and 56 days.
The severities for the cold and dry heat tests are the lower and upper category temperatures,
respectively.
2.2 Preferred values of ratings
2.2.1 Nominal capacitance (C )
N
Preferred values of nominal capacitance shall be taken from the E series of IEC 60063.
2.2.2 Tolerances on nominal capacitance
Preferred tolerances on the nominal capacitance are;
±20 %, ±10 %, ±5 %, ±2 % and ±1 %.
2.2.3 Nominal capacitance with associated tolerance values
For preferred combinations of capacitance, series and tolerances are shown in Table 2.
Table 2 – Preferred combinations of capacitance value series
and tolerances
Preferred combinations
Series Tolerances
E 6 ±20 %
E 12 ±10 %
E 24 ±5 %
E 48 ±2 %
E 96 ±1 %
2.2.4 Rated voltage (U )
R
The preferred values of rated voltages taken from the R5 series of ISO 3 are:
40 V − 63 V − 100 V − 160 V − 250 V − 400 V − 630 V − 1 000 V − 1 600 V − 2 500 V.

2.2.5 Category voltage (U )
C
The category voltage is equal to the rated voltage U for upper category temperatures up
R
to 85 °C. For an upper category temperature of > 85 °C, the category voltage is 0,7 U .
R
2.2.6 Rated temperature
The standard value for rated temperature is 85 °C. Except for an upper category temperature
of 70 °C where the rated temperature is 70 °C.
3 Quality assessment procedures
3.1 Primary stage of manufacture
The primary stage of manufacture is the winding of the capacitor element or the equivalent
operation.
3.2 Structurally similar components
Capacitors considered as being structurally similar are capacitors produced with similar
processes and materials, though they can be of different case sizes, capacitance and voltage
values.
3.3 Certified records of released lots
The information required in IEC 60384-1:2016, Q.1.5, shall be made available when
prescribed in the detail specification and when requested by a purchaser. After the endurance
test, the required parameters are the capacitance change, tangent of loss angle and the
insulation resistance.
3.4 Qualification approval procedures
3.4.1 General
The procedures for qualification approval testing are given in IEC 60384-1:2016, Clause Q.2.
The schedule to be used for qualification approval testing on the basis of lot-by-lot and
periodic tests is given in 3.5. The procedure using a fixed sample size schedule is given
in 3.4.2.
3.4.2 Qualification approval on the basis of the fixed sample size procedures
3.4.2.1 Sampling
The fixed sample size procedure is described in IEC 60384-1:2016, Q.2.4. The sample shall
be representative of the range of capacitors for which approval is sought. This may be the
whole or the part of the range given in the detail specification.
The sample shall consist of specimens having the maximum and minimum voltages, and, for
these voltages, the maximum and minimum capacitances. When there are more than four
rated voltages, an intermediate voltage shall also be tested. Thus, for the approval of a range,
testing is required of either four or six values (capacitance/voltage combinations). When the
range consists of fewer than four values, the number of specimens to be tested shall be that
required for four values.
a) Two (for 6 values) or three (for 4 values) per value may be used as replacements for
specimens, which are non-conforming because of incidents not attributable to the
manufacturer.
– 14 – IEC 60384-16:2019 © IEC 2019
The numbers given in Group 0 assume that all groups are applicable. If this is not so, the
numbers may be reduced accordingly.
When additional groups are introduced into the qualification approval test schedule, the
number of specimens required for Group 0 shall be increased by the same number as that
required for the additional groups.
Table 3 gives the number of samples to be tested in each group or subgroup together with the
permissible number of non-conforming items for qualification approval tests.
3.4.2.2 Tests
The complete series of tests specified in Table 3 and Table 4 are required for the approval of
capacitors covered by a detail specification. The tests of each group shall be carried out in
the order given.
The whole sample shall be subjected to the tests of Group 0 and then divided for the other
groups.
Specimens found to be non-conforming in the tests of Group 0 shall not be used for the other
groups.
Approval is granted when the number of non-conforming items is zero.
Table 3 and Table 4 together form the fixed sample size test schedule for the qualification
approval on the basis of the fixed sample size procedure.
Table 3 gives the number of the samples and permissible non-conforming items for each test
or test group.
Table 4 gives a summary of the test conditions and performance requirements, and choices of
the test conditions and performance requirements in the detail specification.
The test conditions and performance requirements for the qualification approval on the basis
of the fixed sample size procedure should be identical to those for quality conformance
inspection given in the detail specification.

Table 3 – Sampling plan for qualification approval tests, assessment level EZ
Group No. Test Subclause Number of specimens (n)
and permissible number of non-conforming
items (c)
Per For four or fewer For six values
b b
value values to be tested
b
to be tested
n 4 n c 6 n c
c c c
0 Visual examination 4.1 0 0
29 + 2 116 + 8 174 + 12
Dimensions 4.1
Capacitance 4.2.2
Tangent of loss angle 4.2.3
...