GB/T 6346.14-2023 PDF English
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GB/T 6346.14-2023: Fixed capacitors for use in electronic equipment - Part 14: Sectional specification--Fixed capacitors for electromagnetic interference suppression and connection to the supply mains
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GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 31.060.10
CCS L 11
GB/T 6346.14-2023 / IEC 60384-14.2013
Replacing GB/T 6346.14-2015
Fixed capacitors for use in electronic equipment - Part 14.
Sectional specification - Fixed capacitors for electromagnetic
interference suppression and connection to the supply mains
(IEC 60384-14.2013, IDT)
Issued on. MARCH 17, 2023
Implemented on. OCTOBER 01, 2023
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 4
Introduction... 10
1 General... 19
1.1 Scope... 19
1.2 Object... 19
1.3 Normative references... 19
1.4 Information to be given in a detail specification... 21
1.5 Terms and definitions... 22
1.6 Marking... 28
1.7 Classification of Class X and Class Y capacitors... 30
2 Preferred ratings and characteristics... 31
2.1 Preferred characteristics... 31
2.2 Preferred values of ratings... 32
2.3 Requirements for sleeving, tape, tubing and wire insulation... 33
3 Assessment procedures... 33
3.1 Primary stage of manufacture... 33
3.2 Structurally similar components... 33
3.3 Certified records of released lots... 33
3.4 Approval testing... 33
3.5 Quality conformance inspection... 45
4 Test and measurement procedures... 48
4.1 Visual examination and check of dimensions... 48
4.2 Electrical tests... 50
4.3 Robustness of terminations... 54
4.4 Resistance to soldering heat... 54
4.5 Solderability... 55
4.6 Rapid change of temperature... 55
4.7 Vibration... 55
4.8 Bump... 56
4.9 Shock... 57
4.10 Container sealing... 57
4.11 Climatic sequence... 58
4.12 Damp heat, steady state... 59
4.13 Impulse voltage... 60
4.14 Endurance... 62
4.15 Charge and discharge... 65
4.16 Radiofrequency characteristics... 66
4.17 Passive flammability test... 67
4.18 Active flammability test... 68
4.19 Component solvent resistance (if applicable)... 70
4.20 Solvent resistance of the marking... 70
Annex A (Normative) Circuit for the impulse voltage test... 71
Annex B (Normative) Circuit for the endurance test... 73
Annex C (Normative) Circuit for the charge and discharge test... 74
Annex D (Normative) Declaration of design... 75
Annex E (Normative) Pulse test circuits... 77
Annex F (Normative) Particular requirements for safety test of surface mounting
capacitors... 79
Annex G (Normative) Capacitance ageing of fixed capacitors of ceramic dielectric,
Class 2... 82
Annex H (Normative) Use of safety approved a.c. rated capacitors in d.c. applications
... 85
Annex I (Normative) Humidity robustness grade for applications, where high stability
under high humidity operating conditions is required... 87
Bibliography... 89
Foreword
This document is drafted in accordance with the rules provided in GB/T 1.1-2020
Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents.
This document is part 14 of GB/T 6346, Fixed capacitors for use in electronic
equipment. The following parts have been issued for GB/T 6346.
-- Part 1.Generic specification;
-- Part 2.Sectional specification - Fixed metalized polyethylene-terephthalate film
dielectric d.c. capacitors;
-- Part 2-1.Blank detail specification - Fixed metallized polyethylene-terephthalate film
dielectric d.c. capacitors - Assessment levels E and EZ;
-- Part 3.Sectional specification - Surface mount fixed tantalum electrolytic capacitors
with manganese dioxide solid electrolyte;
-- Part 3-1.Blank detail specification - Surface mount fixed tantalum electrolytic
capacitors with manganese dioxide solid electrolyte - Assessment level EZ;
-- Part 4.Sectional specification - Aluminium electrolytic capacitors with solid and non-
solid electrolyte;
-- Part 4-1.Blank detail specification - Aluminium electrolytic capacitors with non-
solid electrolyte - Assessment level E;
-- Part 5.Sectional specification. Fixed mica dielectric d.c. capacitors with a rated
voltage not exceeding 3 000 V - Selection of methods of test and general
requirements;
-- Part 5-1.Blank detail specification. Fixed mica dielectric d.c. capacitors with a rated
voltage not exceeding 3 000 V - Assessment level E;
-- Part 6.Sectional specification. Fixed metallized polycarbonate film dielectric d.c.
capacitors;
-- Part 6-1.Blank detail specification. Fixed metallized polycarbonate film dielectric
d.c. capacitors - Assessment level E;
-- Part 7.Sectional specification. Fixed polystyrene film dielectric metal foil d.c.
capacitors;
-- Part 7-1.Blank detail specification. Fixed polystyrene film dielectric metal foil d.c.
capacitors - Assessment level E;
-- Part 8.Sectional specification. Fixed capacitors of ceramic dielectric, Class 1;
-- Part 8-1.Blank detail specification. Fixed capacitor of ceramic dielectric, Class 1 -
Assessment level EZ;
-- Part 9.Sectional specification. Fixed capacitors of ceramic dielectric, Class 2;
-- Part 9-1.Blank detail specification. Fixed capacitor of ceramic dielectric, Class 2 -
Assessment level EZ;
-- Part 11.Sectional specification. Fixed polyethylene-terephthalate film dielectric
metal foil D.C. capacitors;
-- Part 11-1.Blank detail specification. Fixed polyethylene-terephthalate film dielectric
metal foil d.c. capacitors - Assessment level EZ;
-- Part 13.Sectional specification - Fixed polypropylene film dielectric metal foil d.c.
capacitors;
-- Part 13-1.Blank detail specification - Fixed polypropylene film dielectric metal foil
d.c. capacitors - Assessment level E and EZ;
-- Part 14.Sectional specification - Fixed capacitors for electromagnetic interference
suppression and connection to the supply mains;
-- Part 14-1.Blank detail specification - Fixed capacitor for electromagnetic
interference suppression and connection to the supply mains - Assessment level DZ;
-- Part 15.Sectional specification - Fixed tantalum capacitors with non-solid or solid
electrolyte;
-- Part 15-1.Blank detail specification - Tantalum capacitors with solid electrolyte and
foil electrode - Assessment level E;
-- Part 15-2.Blank detail specification - Fixed tantalum capacitors with solid electrolyte
sintering - Assessment level E;
-- Part 15-3.Blank detail specification - Fixed tantalum capacitors with solid electrolyte
and porous anode - Assessment level E;
-- Part 16.Sectional specification - Fixed metallized polypropylene film dielectric d.c.
capacitors;
-- Part 16-1.Blank detail specification. Fixed metallized polypropylene film dielectric
d.c. capacitors - Assessment levels E and EZ;
-- Part 17.Sectional specification - Fixed polypropylene film dielectric a.c. and pulse
capacitors;
-- Part 17-1.Blank detail specification - Fixed metallized polypropylene film dielectric
a.c. and pulse capacitors - Assessment levels E and EZ;
-- Part 18.Sectional specification - Fixed aluminium electrolytic chip capacitors with
solid (MnO2) and non-solid electrolyte;
-- Part 18-1.Blank detail specification - Fixed aluminium electrolytic chip capacitors
with solid (MnO2) and non-solid electrolyte - Assessment level EZ;
-- Part 18-2.Blank detail specification - Fixed aluminium electrolytic chip capacitors
with non-solid electrolyte - Assessment level E;
-- Part 19.Sectional specification - Fixed metallized polyethylene-terephthalate film
dielectric surface mount d.c. capacitors;
-- Part 19-1.Blank detail specification - Fixed metallized polyethylene-terephthalate
film dielectric surface mount d.c. capacitors - Assessment level EZ;
-- Part 21.Sectional specification. Fixed surface mount multilayer capacitors of ceramic
dielectric class 1;
-- Part 21-1.Blank detail specification. Fixed surface mount multilayer capacitors of
ceramic dielectric class 1 - Assessment level EZ;
-- Part 22.Sectional specification. Fixed surface mount multilayer capacitors of ceramic
dielectric class 2;
-- Part 22-1.Blank detail specification. Fixed surface mount multilayer capacitors of
ceramic dielectric class 2 - Assessment level EZ;
-- Part 24.Sectional specification - Fixed tantalum electrolytic surface mount capacitors
with conductive polymer solid electrolyte;
-- Part 25.Sectional specification - Fixed aluminium electrolytic surface mount
capacitors with conductive polymer solid electrolyte;
-- Part 25-1.Blank detail specification - Surface mount fixed aluminum electrolytic
capacitors with conductive polymer solid electrolyte - Assessment level EZ;
-- Part 26.Sectional specification - Fixed aluminium electrolytic capacitors with
conductive polymer solid electrolyte;
-- Part 26-1.Blank detail specification - Fixed aluminium electrolytic capacitors with
conductive polymer solid electrolyte - Assessment level EZ.
This document replaces GB/T 6346.14-2015, Fixed capacitors for use in electronic
equipment - Part 14.Sectional specification - Fixed capacitors for electromagnetic
interference suppression and connection to the supply mains. Compared with GB/T
6346.14-2015, except for structural adjustment and editorial changes, the main
technical changes are as follows.
-- CHANGE d.c. voltage between mains applicable to capacitors from 1 000 V to 1 500
V (see 1.1; 1.1 of the 2015 edition);
-- ADD “The overvoltage categories in combination with the a.c. mains voltages for the
capacitors classified in this document shall be taken from IEC 60664-1” (see 1.2);
-- ADD the markings a.c. and d.c. for alternating current and direct current respectively
(see 1.6);
-- REMOVE capacitor of Class X3 and capacitor of Class Y3 (see 1.5.3 and 1.5.4 of
the 2015 edition);
-- CHANGE the maximum rated voltage (a.c.) for capacitor of Class Y2 from 300 V to
500 V (see 1.7.2 and Table 10; 1.5.4 and Table 10 of the 2015 edition);
-- CHANGE the peak impulse voltage applied before endurance test of Y2-capacitors
to be divided according to the nominal capacitance (see 1.7.2; 1.5.4 of the 2015
edition);
-- CHANGE the flame retardance category permitted from the minimum category C to
the preferred category B, and to category C for components smaller than 1 750 mm3
(see 2.2.6 and 4.17; 2.2.6 and 4.17 of the 2015 edition);
-- ADD rated voltage, rated temperature, and flame retardant requirements for sleeving,
tape, tubing and wire insulation (see 2.3);
-- ADD provisions for grouping ceramic capacitors according to relative permittivity in
sampling (see 3.4.3.1);
-- DELETE the provisions of assessment level D (see Table 4, Table 5, Table 7 and
Table 8 of the 2015 edition);
-- CHANGE the voltage -- if a d.c. test voltage is used instead of a.c. for Y-capacitors -
- from 1.8 times to 1.5 times (see 3.5; 3.5 of the 2015 edition);
-- CHANGE the interval for re-inspection in the case of delayed delivery from not
exceeding 3 months to not exceeding 3 years (see 3.5.3; 3.5.3 of the 2015 edition);
-- CHANGE part of the creepage distances and clearances of Y1- and Y2-capacitors
(see Table 9; Table 9 of the 2015 edition);
-- CHANGE the test conditions for the withstanding voltage test (see Table 10; Table
10 of the 2015 edition);
-- ADD supplementary provisions for the measuring frequency of ceramic capacitors
(see 4.2.3);
-- ADD the provision “When preconditioning is performed, initial measurements shall
be carried out after preconditioning” (see 4.4, 4.6, 4.8.2, 4.9.2, 4.13.1, 4.15.1);
-- ADD specific provisions on the test conditions of damp heat, steady state (see 4.12.2);
-- ADD provisions for the fuse in the endurance test (see 4.14.1);
-- ADD the requirement that the case temperature of the capacitor shall be measured for
RC units with specified rated temperature in the endurance test (see 4.14.3);
-- CHANGE the impulse voltage of capacitor endurance test (see 4.14.3 and 4.14.4;
4.14.3 and 4.14.4 of the 2015 edition);
-- ADD provisions for the resistor of Class X capacitors >10 μF in the endurance test
circuit (see 4.14.3.1);
-- ADD that for SMD capacitors consisting of ceramic and metal only, the passive
flammability test can be omitted (see 4.17);
-- ADD the alternative passive flammability test (see 4.17.2);
-- CHANGE the Ct value of the tank capacitor in the test circuit of the active
flammability test (see 4.18.2; 4.18.2 of the 2015 edition);
-- ADD the normative Annex H “Use of safety approved a.c. rated capacitors in d.c.
Applications” and the normative Annex I “Humidity robustness grade for
applications, where high stability under high humidity operating conditions is
required” (see Annex H and Annex I).
This document is identical to IEC 60384-14.2013, Fixed capacitors for use in electronic
equipment - Part 14.Sectional specification - Fixed capacitors for electromagnetic
interference suppression and connection to the supply mains.
The following minimal editorial changes are made to this document.
-- INCLUDE the amendment given in IEC 60384-14.2013/AMD1.2016, and MARK
the terms involved with vertical double lines (ǁ) on the outer margin.
Please note that some of the contents of this document may involve patents. The issuing
organization of this document is not responsible for identifying patents.
This document was proposed by the Ministry of Industry and Information Technology
of the People’s Republic of China.
This document shall be under the jurisdiction of National Technical Committee 165 on
RC-component for Electronic Equipment of Standardization Administration of China
(SAC/TC 165).
Drafting organizations of this document. China Electronics Standardization Institute,
Xiamen Faratronic Co., Ltd., Hunan Aihua Group Co., Ltd.
Main drafters of this document. Liu Xuekong, Huang Shunda, Yin Baohua.
The previous versions of this document and the documents which are replaced by this
document are as follows.
-- It was first published in 1993 as GB/T 14472-1993, and first revised in 1998;
-- It was revised in 2015 for the second time, while the number was adjusted to GB/T
6346.14-2015;
-- This is the third revision.
1 General
The following documents, in whole or in part, are normatively referenced in this
document and are indispensable for its application. For dated references, only the
edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
2 Preferred ratings and characteristics
The preferred values of rated voltage are 125 V, 250 V, 275 V, 400 V, 440 V, 500 V, 760
V and 1 000 V.
Preferred values of nominal resistance shall be taken from the E6 series of IEC 60063.
3 Assessment procedures
One of the complete series of tests indicated in Tables 3, 4 or 5 is required for the
approval of capacitors of a single rated voltage covered by one detail specification. The
tests of each group shall be carried out in the order given.
The conditions of test and performance requirements for the fixed sample size schedule
should be identical to those prescribed in the detail specification for the quality
conformance inspection.
4 Test and measurement procedures
This clause supplements the information given in IEC 60384-1.2016, Clause 4.
AC tests carried out at a frequency of 50 Hz ~ 100 Hz are considered valid for any
nominal frequency of 50 Hz ~ 100 Hz. In case of doubt, 50 Hz shall be the reference
frequency for measurements.
Annex A
(Normative)
Circuit for the impulse voltage test
It has to be pointed out that the 1.2/50 pulse shape in equipment standards, e.g. in IEC
60065.2014, Annex K and in IEC 60950-1.2005, Annex N, is defined under open circuit
conditions, and different shape is accepted in under load conditions.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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