IEC 60384-17:2019

IEC 60384-17 ®
Edition 3.0 2019-03
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Fixed capacitors for use in electronic equipment –
Part 17: Sectional specification – Fixed metallized polypropylene film dielectric
AC and pulse capacitors
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IEC 60384-17 ®
Edition 3.0 2019-03
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Fixed capacitors for use in electronic equipment –

Part 17: Sectional specification – Fixed metallized polypropylene film dielectric

AC and pulse capacitors
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.060.30 ISBN 978-2-8322-6685-4

– 2 – IEC 60384-17:2019 RLV © 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 . 10
1.4.4 Ratings and characteristics . 10
1.4.5 Marking . 11
1.5 Terms and definitions . 11
1.5.1 General . 11
1.5.2 Performance and stability grades . 11
1.5.3 Rated voltages . 12
1.6 Marking . 12
1.6.1 General . 12
1.6.2 Information for marking . 12
1.6.3 Marking on capacitors . 13
1.6.4 Marking on packaging . 13
1.6.5 Additional marking . 13
2 Preferred ratings and characteristics . 13
2.1 Preferred characteristics . 13
2.1.1 General . 13
2.1.2 Preferred climatic categories . 13
2.2 Preferred values of ratings . 14
2.2.1 Rated Nominal capacitance (CR CN) . 14
2.2.2 Tolerances on rated nominal capacitance . 14
2.2.3 Rated Nominal capacitance with associated tolerance values . 14
2.2.4 Rated AC voltage (U or U ) . 14
RAC R~
2.2.5 Category AC voltage (U or U ) . 14
CAC C~
2.2.6 Rated temperature . 15
2.2.7 Rated AC current (when required in the detail specification if required) . 15
2.2.8 Rated pulse voltage (if required) . 15
3 Quality assessment procedures . 15
3.1 Primary stage of manufacture . 15
3.2 Structurally similar components . 16
3.3 Certified test records of released lots . 16
3.4 Qualification approval procedures . 16
3.4.1 General . 16
3.4.2 Qualification approval on the basis of the fixed sample size procedure . 16
3.5 Quality conformance inspection . 34
3.5.1 Formation of inspection lots . 34
3.5.2 Test schedule . 34
3.5.3 Delayed delivery . 34
3.5.4 Assessment levels . 34

4 Test and measurement procedures . 36
4.1 Visual examination and check of dimensions . 36
4.1.1 General . 36
4.1.2 Visual examination and check of dimensions . 36
4.1.3 Requirements . 37
4.2 Electrical tests . 37
4.2.1 Voltage proof for AC capacitors . 37
4.2.2 Capacitance . 38
4.2.3 Tangent of loss angle (tan δ) . 39
4.2.4 Insulation resistance . 40
4.2.5 Inductance (if required) . 41
4.2.6 Characteristics depending on temperature (if required in the detail
specification) . 41
4.3 Robustness of terminations . 42
4.3.1 General . 42
4.3.2 Initial measurements inspections . 42
4.3.3 Final inspections and requirements . 43
4.4 Resistance to soldering heat . 43
4.4.1 General . 43
4.4.2 Initial inspections . 43
4.4.3 Test Conditions . 43
4.4.4 Recovery . 43
4.4.5 Final inspections, measurements and requirements . 43
4.5 Solderability . 43
4.5.1 General . 43
4.5.2 Test conditions . 43
4.5.3 Final inspections and requirements . 44
4.6 Rapid change of temperature . 44
4.6.1 General . 44
4.6.2 Initial inspections . 44
4.6.3 Test conditions . 44
4.6.4 Final inspections and requirements . 44
4.7 Vibration . 44
4.7.1 General . 44
4.7.2 Initial inspections . 45
4.7.3 Test conditions . 45
4.7.4 Final inspections, measurements and requirements . 45
4.8 Bump (repetitive shock) . 45
4.8.1 General . 45
4.8.2 Initial measurements . 45
4.8.3 Test conditions . 45
4.8.4 Final inspections, measurements and requirements . 45
4.9 Shock . 46
4.9.1 General . 46
4.9.2 Initial measurements . 46
4.9.3 Test conditions . 46
4.10 Climatic sequence. 46
4.10.1 General . 46
4.10.2 Initial measurements . 46

– 4 – IEC 60384-17:2019 RLV © IEC 2019
4.10.3 Dry heat . 46
4.10.4 Damp heat, cyclic, Test Db, first cycle . 46
4.10.5 Cold. 46
4.10.6 Low air pressure (if required) . 47
4.10.7 Damp heat, cyclic, Test Db, remaining cycles . 47
4.10.8 Recovery . 47
4.11 Damp heat, steady state . 48
4.11.1 General . 48
4.11.2 Initial measurements inspections . 48
4.11.3 Test conditions . 48
4.11.4 Recovery . 48
4.11.5 Final inspections, measurements and requirements . 48
4.11.6 Humidity robustness grades . 48
4.12 Endurance . 48
4.12.1 General . 48
4.12.2 Endurance test at 50 Hz/60 Hz alternating voltage (if applicable) . 48
4.12.3 Endurance test with sinusoidal current or voltage (if required) . 49
4.12.4 Pulse endurance test (if applicable required) . 50
4.13 Charge and discharge . 51
4.13.1 General . 51
4.13.2 Initial measurements inspections . 51
4.13.3 Test conditions . 51
4.13.4 Recovery . 51
4.13.5 Final inspections,measurements and requirements . 51
4.14 Component solvent resistance (if required) . 52
4.15 Solvent resistance of marking (if required) . 52
4.16 Sealing (if required) . 52
Annex A (normative) Humidity robustness grades . 53
A.1 General . 53
A.2 Humidity robustness grades . 53
A.3 Indication of humidity robustness grades . 54
Bibliography . 55

Figure 1 – Category AC voltage/rated AC voltage versus upper category temperature . 15

Table – Sampling plan together with numbers of permissible defectives
for qualification approval tests for a.c. and pulse capacitors .
Table 1 – Preferred values designations of performance grade and stability grade
combinations . 12
Table 2 – Preferred combinations of capacitance series and tolerance . 14
Table 3 – Test and sampling plan for qualification approval, assessment level EZ . 19
Table 4 – Test schedule for qualification approval (1 of 8) . 20
Table 5 – Lot-by-lot inspection . 35
Table 6 – Periodic inspection tests. 36
Table 7 – Test voltages, DC . 37
Table 8 – Test voltages, AC . 38
Table 9 – Tangent of loss angle limits, 1 kHz . 39

Table 10 – Tangent of loss angle limits, 10 kHz . 40
Table 11 – Insulation resistance requirements . 41
Table 12 – Insulation resistance correction factor dependent on test temperature . 41
Table 13 – Characteristics at lower category temperature . 42
Table 14 – Characteristics at upper category temperature . 42
Table 15 – Preferred severities in shock test. 46
Table A.1 – Minimum requirements . 53

– 6 – IEC 60384-17:2019 RLV © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –

Part 17: Sectional specification – Fixed metallized polypropylene
film dielectric AC and pulse 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
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
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with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.

International Standard IEC 60384-17 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) all parts of the document have been revised based on the ISO/IEC Directives, Part 2:2016
(seventh edition) and harmonization between other similar kinds of documents;
b) tables and Clause 4 have been revised so as to prevent duplications and contradictions;
c) new damp heat steady-state robustness classes with test conditions have been added in
text, in Clause 4 and in Annex A.
The text of this International Standard is based on the following documents:
FDIS Report on voting
40/2654/FDIS 40/2664/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 web site.
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.
The contents of the corrigendum of December 2020 have been included in this copy.

IMPORTANT – The “colour inside” logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this publication using a colour printer.

– 8 – IEC 60384-17:2019 RLV © IEC 2019
FIXED CAPACITORS FOR USE IN ELECTRONIC EQUIPMENT –

Part 17: Sectional specification – Fixed metallized polypropylene
film dielectric AC and pulse capacitors

1 General
1.1 Scope
This part of IEC 60384 applies to fixed capacitors with metallized electrodes and
polypropylene dielectric for use in electronic equipment.
NOTE Capacitors that have mixed foil film and metallized electrodes are also within the scope of this standard.
These capacitors may have "self-healing" properties depending on conditions of use.
Capacitors covered by this specification are mainly intended for use with alternating voltage
and/or for pulse applications. The maximum reactive power applicable is 10 000 var and the
maximum peak voltage is 3 000 V.
Capacitors for reactive power exceeding 500 var, and to which a maximum peak voltage of
2 500 V at 50 Hz can be applied, are not covered by this document, except when they are the
highest part of a range of reactive power mainly situated below 500 var at 50 Hz.
This document is not intended to cover capacitance values higher than 20 µF.
Two performance grades of capacitors are covered, Grade 1 for long-life application and
Grade 2 for general application.
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 of IEC technical
committee 61) and fluorescent lamp and motor capacitors (covered by IEC 60252-1 and
IEC 60252-2 of IEC technical committee 33), and capacitors for use in tubular fluorescent and
other discharge lamp circuits (covered by IEC 61048 and IEC 61049 of IEC technical
committee 34) 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 shall be of an 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 60062, Marking codes for resistors and capacitors

IEC 60063:1963, Preferred number series for resistors and capacitors
Amendment 1 (1967)
Amendment 2 (1977)
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 60384-16, Fixed capacitors for use in electronic equipment – Part 16: Sectional
specification: Fixed metallized polypropylene film dielectric d.c. capacitors
IEC 60384-17-1, Fixed capacitors for use in electronic equipment – Part 17: Blank detail
specification: Fixed metallized polypropylene film dielectric a.c. and pulse capacitors.
Assessment level E
IEC 60410, sampling plans and procedures for inspection by attributes
IEC 61193-2:2007, Quality assessment systems – Part 2: Selection and use of sampling plans
for inspection of electronic components and packages
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 relevant 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.
NOTE The information given in 1.4.2 may, for convenience, be presented in tabular form.
The information in 1.4.2 to 1.4.4 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 capacitor 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 terminations. 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:
– general case: width, length and height;

– 10 – IEC 60384-17:2019 RLV © IEC 2019
– for cylindrical body: diameter and length.
The numerical values of the terminals shall be given as follows:
– width or diameter, length and spacing.
When necessary, for example when a number of items (sizes and 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.
When the configuration is other than described above, the detail specification shall state such
dimensional information as will adequately describe the capacitor. When the capacitor is not
designed for use on printed boards, this shall be clearly stated in the detail specification.
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 capacitors shall be
mounted by their normal means. 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.
1.4.4 Ratings and characteristics
1.4.4.1 General
The ratings and characteristics shall be in accordance with the relevant clauses of this
specification, together with the following including the items as specified in 1.4.4.2 to 1.4.4.5.
1.4.4.2 Rated Nominal capacitance range
See 2.2.1.
NOTE When products approved to the detail specification have different ranges, the following statement should
be added:
"The range of values available in each voltage range is given in IEC QC 001005."
When products approved to the detail specification have different nominal capacitance 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 Sinusoidal current (if applicable)
The detail specification shall state the derating curve of the sinusoidal current versus
temperature with reference to 70 °C, and the derating curve of the sinusoidal current versus
frequency and of the sinusoidal current versus capacitance.
1.4.4.4 Particular characteristics
Additional characteristics may be listed, when they are considered necessary to specify
adequately the component for design and application purposes.
1.4.4.5 Soldering
The detail specification shall prescribe specify the test methods, severities and requirements
applicable for the solderability and the resistance to soldering heat tests.

1.4.5 Marking
The detail specification shall specify the content of the marking on the capacitor and on the
package. Deviations from 1.6 of this sectional specification, shall be specifically stated.
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 given in the detail specification.
1.5 Terms and definitions
1.5.1 General
For the purposes of this document, the applicable 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
1.5.2 Performance and stability grades
The performance grade describes the capacitor’s ability to function in the intended
applications. The stability grade describes capacitance drift in tests.
1.5.2.1
performance grade 1 capacitors
capacitors intended for long-life applications with stringent requirements for the
electrical parameters
1.5.2.2
performance grade 2 capacitors
capacitors for general application where the stringent requirements of
performance for grade 1 capacitors are not necessary
1.5.2.3
stability grade
capacitance drift after climatic and mechanical tests and after endurance tests
Note 1 to entry: The performance grade and the stability grade must shall be noted in the detail specification.
1.5.2.4
performance grade and stability grade combinations (if stability grade is required for
a.c. and pulse capacitors)
designation for combined performance grade and stability grade
Note 1 to entry: see the table below for preferred values. Table 1 shows the preferred combination designations.

– 12 – IEC 60384-17:2019 RLV © IEC 2019
Table 1 – Preferred values designations of performance grade and
stability grade combinations
Performance Stability Combination
grades grades designations
1 1.1
2 1.2
2 – 2
The three combinations concern capacitance stability and tan δ values. Distinction in performance of the three
combinations is shown in Table 4.
1.5.3 Rated voltages
1.5.3.1 General
NOTE The sum of the DC voltage and the peak AC voltage or the peak pulse voltage applied to
the capacitor must shall not exceed the rated voltage. The value of the peak AC voltage
allowed at different frequencies is under consideration.
1.5.3.2
rated DC voltage
maximum DC voltage that may be applied continuously to a capacitor at the rated temperature
1.5.3.3
rated AC voltage
maximum RMS alternating voltage that may be applied continuously to a capacitor at the
rated temperature and at a given frequency
1.5.3.4
rated pulse voltage
peak value of the pulse voltage that may be applied continuously to a capacitor at the rated
temperature and at a given frequency
1.5.3.5
rated voltage pulse slope (if applicable)
dU
maximum admissible value of the voltage slope of a pulse at the rated temperature at
dt
such a repetition frequency that no significant increase of temperature occurs
dU
( )
Note 1 to entry: The formula for rated voltage pulse slope is
dt
( )
R
1.6 Marking
1.6.1 General
See IEC 60384-1:2016, 2.4, with the details given in 1.6.2 to 1.6.5.
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) rated nominal capacitance (in clear or code in accordance with IEC 60062);

b) rated AC and/or pulse voltage (AC voltage may be indicated by the symbol (IEC 60417-
5032-2002-10)) and the corresponding frequency if different from 50 Hz;
c) tolerance on rated nominal capacitance;

d) rated DC voltage (DC voltage may be indicated by the symbol   or  
(IEC 60417-5031-2002-10)) (if applicable);
e) rated voltage pulse slope (if applicable);
f) rated current and corresponding frequency (if applicable);
g) year and month (or year and week) of manufacture;
h) manufacturer's name and/or trade mark;
i) climatic category;
j) manufacturer's type designation;
k) reference to the detail specification.
1.6.3 Marking on capacitors
The capacitor shall be clearly marked with a), b) and c) of 1.6.2 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.
Any marking shall be legible and not easily smeared or removed by rubbing with a finger.
1.6.4 Marking on packaging
The package packaging containing capacitor(s) shall should be clearly marked with all the
information listed in 1.6.2 as applicable.
1.6.5 Additional marking
Any additional marking shall be so applied that no confusion can arise.
2 Preferred ratings and characteristics
2.1 Preferred characteristics
2.1.1 General
The values given in detail specifications shall preferably be selected from 2.2.1 to 2.2.8.
2.1.2 Preferred climatic categories
The capacitors covered by this 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, +105 °C, +110 °C and + 125 °C;
– duration of the damp heat, steady-state test: 4 d, 10 d, 21 d and 56 d.
The severities for the cold and dry heat tests are the lower and upper category temperatures,
respectively.
If specified in the detail specification, the humidity robustness grade according to Annex A
should be given in connection with the climatic category.

– 14 – IEC 60384-17:2019 RLV © IEC 2019
2.2 Preferred values of ratings
2.2.1 Rated Nominal capacitance (C C )
R
N
Preferred values of rated nominal capacitance are values chosen from the E series of
preferred values given in IEC 60063 which are given in Table 2, and their decimal multiples (×
n
10 , where n is an integer).
2.2.2 Tolerances on rated nominal capacitance
The preferred tolerances on the rated nominal capacitance are ±20 %; ±10 %; ±5 %; ±2 %;
±1 %.
2.2.3 Rated Nominal capacitance with associated tolerance values
For preferred combinations of capacitance series and tolerances, see Table 2.
Table 2 – Preferred combinations of capacitance series and tolerance
Preferred combinations
Series Tolerances
E 6 ±20 %
E 12 ±10 %
E 24 ±5 %
E 48 ±2 %
E 96 ±1 %
2.2.4 Rated AC voltage (U or U )
RAC R~
The frequency for the rated AC voltage shall be 50 Hz/60 Hz unless the detail specification
prescribes a higher frequency.
The preferred values of rated AC voltage (RMS value) shall be chosen from the R10 or R20
series given in ISO 3.
The detail specification shall give the derating curve of the admissible RMS voltage versus
temperature (higher than rated temperature) and, if applicable, versus frequency.
2.2.5 Category AC voltage (U or U )
CAC C~
The category AC voltage is equal to the rated AC voltage U for upper category
RAC
temperatures up to 85 °C. For an upper category temperature >85 100 °C, the category AC
voltage is 0,7 U . For upper category temperatures > 100 °C, the category AC voltage will
RAC
be calculated following the slope from U at 85 °C to 0,7 U at 100 °C for each

RAC RAC
temperature (for example 105 °C, 110 °C or 125 °C).
Figure 1 gives the category AC voltage ratio to rated AC voltage as a function of upper
category temperature.
1,1
1,0
0,9
0,8
0,7
0,6
0,5
0,4
0,3
0,2
0,1
80 85 90 95 100 105 110 115 120 125
Temperature (°C)
IEC
Figure 1 – Category AC voltage/rated AC voltage
versus upper category temperature
2.2.6 Rated temperature
The standard value for rated temperature is 85 °C. Except for an upper category temperature
of 70 °C, the rated temperature is 70 °C.
NOTE AC rated temperature is 15 °C less than d.c. rated temperature. For DC rated voltage, the rated
temperature is 15 °C higher than for AC rated voltage.
2.2.7 Rated AC current (when required in the detail specification if required)
The detail specification shall state:
– the frequency;
– the RMS value of the rated AC current applicable at the specified frequency (value chosen
from R10 or R20 series);
– the derating curve of the admissible AC current versus ambient temperature.
2.2.8 Rated pulse voltage (if required)
The detail specification shall state:
– voltage pulse slope
– duration of the pulse
– repetition frequency of the pulses
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.
Category AC voltage/rated AC voltage

– 16 – IEC 60384-17:2019 RLV © IEC 2019
3.2 Structurally similar components
Capacitors considered as being structurally similar are capacitors produced with similar
processes and materials, though they may can be of different case sizes and capacitance and
voltage values.
3.3 Certified test records of released lots
The informatio
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