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eLibrary > BS EN IEC 60384-14:2023 Fixed capacitors for use in electronic equipment - Sectional specification. Fixed capacitors for electromagnetic interference suppression and connection to the supply mains >

BS EN IEC 60384-14:2023 Fixed capacitors for use in electronic equipment - Sectional specification. Fixed capacitors for electromagnetic interference suppression and connection to the supply mains, 2024

BS EN IEC 60384-14:2023 Fixed capacitors for use in electronic equipment - Sectional specification. Fixed capacitors for electromagnetic interference suppression and connection to the supply mains, 2024

undefined [Go to Page]
Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
English [Go to Page]
CONTENTS
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions and classification [Go to Page]
3.1 Terms and definitions
Figures [Go to Page]
Figure 1 – Two-terminal EMI suppression capacitor
Figure 2 – RC unit
Figure 3 – Lead-through capacitor (coaxial)
Figure 4 – Lead-through capacitors
Figure 5 – By-pass capacitors
3.2 Classifications [Go to Page]
3.2.1 Classification of X capacitors
3.2.2 Classification of Y capacitors
Tables [Go to Page]
Table 1 – Classification of Class X capacitors
4 Preferred ratings and characteristics [Go to Page]
4.1 Preferred climatic categories
Table 2 – Classification of Class Y capacitors
4.2 Preferred values of ratings [Go to Page]
4.2.1 Nominal capacitance (CN)
4.2.2 Tolerance on nominal capacitance
4.2.3 Selection of rated voltages (UR)
4.2.4 Nominal resistance (RN)
4.2.5 Rated temperature
4.2.6 Passive flammability
4.3 Requirements for sleeving, tape, tubing and wire insulation
5 Test and measurement procedures, and performance requirements [Go to Page]
5.1 General
5.2 Visual examination and check of dimensions [Go to Page]
5.2.1 General
5.2.2 Creepage distances and clearances
5.3 Electrical tests [Go to Page]
5.3.1 Voltage proof
Table 3 – Creepage distances and clearances
Table 4 – Voltage proof [Go to Page]
5.3.2 Capacitance
5.3.3 Tangent of loss angle
5.3.4 Resistance (Equivalent Series Resistance (ESR)) (for RC units only)
5.3.5 Insulation resistance
Table 5 – Insulation resistance – Safety tests only
5.4 Robustness of terminations
5.5 Resistance to soldering heat [Go to Page]
5.5.1 General
5.5.2 Test conditions
Table 6 – Insulation resistance – Safety and performance tests [Go to Page]
5.5.3 Final inspection, measurements, and requirements
5.6 Solderability [Go to Page]
5.6.1 General
5.6.2 Test conditions
5.6.3 Requirements
5.7 Rapid change of temperature [Go to Page]
5.7.1 General
Table 7 – Resistance to soldering heat – Requirements [Go to Page]
5.7.2 Final inspection
5.8 Vibration [Go to Page]
5.8.1 General
5.8.2 Test conditions
5.8.3 Final inspection
5.9 Repetitive shock (bump) [Go to Page]
5.9.1 General
5.9.2 Test conditions
5.9.3 Final inspection, measurements, and requirements
5.10 Shock [Go to Page]
5.10.1 General
5.10.2 Test conditions
5.10.3 Final inspection, measurements, and requirements
Table 8 – Shock test preferred severities
5.11 Container sealing [Go to Page]
5.11.1 General
5.11.2 Test conditions
5.11.3 Requirements
5.12 Climatic sequence [Go to Page]
5.12.1 General
5.12.2 Initial measurements
5.12.3 Dry heat
5.12.4 Damp heat, cyclic, test Db, first cycle
5.12.5 Cold
5.12.6 Damp heat, cyclic, test Db, remaining cycles
5.12.7 Final inspection, measurements, and requirements
5.13 Damp heat, steady state (DHSS) [Go to Page]
5.13.1 General
5.13.2 Initial measurements
5.13.3 Test conditions
Table 9 – Climatic sequence – Requirements [Go to Page]
5.13.4 Final inspection, measurements, and requirements
Table 10 – Damp heat, steady state –Requirements for samples tested without voltage applied [Go to Page]
5.13.5 Sample size summary for humidity tests
5.14 Impulse voltage [Go to Page]
5.14.1 General
5.14.2 Initial measurements
Table 11 – Damp heat, steady state – Requirements for samples tested with voltage applied
Table 12 – Sample sizes for humidity tests [Go to Page]
5.14.3 Test conditions
5.14.4 Requirements
Figure 6 – Impulse wave form
5.15 Endurance [Go to Page]
5.15.1 General
5.15.2 Test conditions
5.15.3 Sampling
5.15.4 Initial measurements
5.15.5 Endurance for Class X capacitors and RC units containing Class X capacitors
5.15.6 Endurance for Class Y capacitors and RC units containing Class Y capacitors
5.15.7 Endurance for the lead-through arrangements
5.15.8 Test conditions – Combined voltage/current tests
5.15.9 Final inspection, measurements, and requirements
5.16 Charge and discharge [Go to Page]
5.16.1 General
5.16.2 Initial measurements
Table 13 – Endurance – Requirements [Go to Page]
5.16.3 Test conditions
5.16.4 Final measurements and requirements
Table 14 – Charge and discharge – Requirements
5.17 Radiofrequency characteristics
5.18 Passive flammability test [Go to Page]
5.18.1 Testing according to IEC 60384-1
5.18.2 Alternative passive flammability test
5.19 Active flammability test [Go to Page]
5.19.1 Test condition
Figure 7 – Typical circuit for pulse loading of capacitors under AC voltage
Figure 8 – Fundamental AC wave with randomly, not synchronized, superimposed high-voltage pulse [Go to Page]
5.19.2 Adjustment of Ui
5.19.3 Requirements
5.20 Component solvent resistance (if applicable)
5.21 Solvent resistance of the marking
6 Marking [Go to Page]
6.1 General
6.2 Information for marking
6.3 Marking of capacitors
6.4 Marking of packaging
6.5 Additional marking
7 Information to be given in a detail specification [Go to Page]
7.1 General
7.2 Outline drawing and dimensions
7.3 Mounting
7.4 Ratings and characteristics [Go to Page]
7.4.1 General
7.4.2 Nominal capacitance range
7.4.3 Nominal resistance range (if applicable)
7.4.4 Particular characteristics
8 Assessment procedures [Go to Page]
8.1 Primary stage of manufacture
8.2 Structurally similar components
8.3 Certified records of released lots
8.4 Approval testing [Go to Page]
8.4.1 Safety tests only qualification approval
8.4.2 Qualification approval based on safety and performance testing
8.4.3 Qualification approval based on the fixed sample size procedure
Table 15 – Sampling plan – Tests concerning safety requirements only
Table 16 – Test schedule and sampling plan for lot-by-lot tests
Table 17 – Test schedule for safety tests only
8.5 Quality conformance inspection [Go to Page]
8.5.1 General
8.5.2 Formation of inspection lots
Figure 9 – Increased voltage for tests below 2 seconds [Go to Page]
8.5.3 Test schedule for safety tests only approval
8.5.4 Delayed delivery
8.5.5 Assessment level
Table 18 – Assessment level
Annexes [Go to Page]
Annex A (normative) Circuit for the impulse voltage test
Figure A.1 – Impulse voltage test circuit
Table A.1 – Values of CX, CT, RP, RS, Cp
Table A.2 – Values and tolerances of CX, tr, td
Annex B (normative) Circuit for the endurance test
Figure B.1 – Endurance test circuit
Annex C (normative) Circuit for the charge and discharge test
Figure C.1 – Charge and discharge test circuit
Annex D (normative) Declaration of design (confidential to the manufacturer and the certification body)
Annex E (informative) Pulse test circuits [Go to Page]
E.1 General
E.2 Test circuits
E.3 Charging of the capacitor
Figure E.1 – Resistive pulse test circuit
Figure E.2 – Inductive pulse test circuit [Go to Page]
E.4 Discharging of the capacitor [Go to Page]
E.4.1 Discharging in resistive circuit
E.4.2 Discharging in inductive circuit
Figure E.3 – Charge waveform for both circuits
Figure E.4 – Discharge waveform for resistive circuit
Figure E.5 – Discharge waveform for inductive circuit
Annex F (normative) Particular requirements for safety test of surface mount capacitors [Go to Page]
F.1 General
F.2 Test and measurement procedures
Table F.1 – Test schedule and sampling plan for safety testof surface mount capacitors
Figure F.1 – Example of test substrate for safety test according to Table F.1
Annex G (informative) Capacitance ageing of fixed capacitors of ceramic dielectric, Class 2 [Go to Page]
G.1 Overview
G.2 Law of capacitance ageing
G.3 Capacitance measurements and capacitance tolerance
G.4 Special preconditioning
Annex H (normative) Use of safety approved AC rated capacitors in DC applications [Go to Page]
H.1 Overview
H.2 Background
H.3 Additional requirement for use of X- and Y-capacitors in DC applications
H.4 Creepage and clearance distances
Table H.1 – Additional test conditions
Annex I (normative) Humidity robustness grades for applications, where high stability under high humidity operating conditions is required [Go to Page]
I.1 Overview
I.2 Humidity robustness grades [Go to Page]
I.2.1 General
I.2.2 Grade (I) robustness under humidity
I.2.3 Grade (II) robustness under high humidity
I.2.4 Grade (III) high robustness under high humidity
I.3 Test description
I.4 Indication of humidity robustness grades
Table I.1 – Requirements
Annex J (normative) Description of creepage/clearance distance measurement for cased and conformal coated capacitors [Go to Page]
J.1 Measurement of creepage distances and clearance – general [Go to Page]
J.1.1 General
J.1.2 Capacitor styles
J.1.3 Capacitor body and terminal insulation
Figure J.1 – Example of a cased capacitor
Figure J.2 – Example of a conformal coated capacitor [Go to Page]
[Go to Page]
J.1.4 Measurement principle
Figure J.3 – Cased and conformal coated types [Go to Page]
J.2 Measurement [Go to Page]
J.2.1 Creepage distance between terminals
Figure J.4 – Description
Figure J.5 – Creepage distance – cased style [Go to Page]
[Go to Page]
J.2.2 Clearance between terminals
J.2.3 Clearance in mounted stage
Figure J.6 – Creepage distance – conformal coated style
Figure J.7 – Clearance between terminals
Figure J.8 – Clearance in mounted stage – cased style
Figure J.9 – Clearance – capacitor body larger than lead pitch
Figure J.10 – Clearance – capacitor body smaller than lead pitch [Go to Page]
[Go to Page]
J.2.4 Conductors between terminals
J.3 Precautions in handling
Annex K (normative) Safety and performance tests qualification approval [Go to Page]
K.1 Overview
K.2 Qualification approval
Table K.1 – Sampling plan – Safety and performance tests qualification approval – Assessment level DZ
Table K.2 – Test schedule and sampling plan for lot-by-lot tests
Table K.3 – Test schedule for safety and performance tests qualification approvalAssessment level DZ [Go to Page]
K.3 Quality conformance inspection [Go to Page]
K.3.1 General
K.3.2 Groups A and B inspection
K.3.3 Group C inspection
K.3.4 Test schedule for qualification approval
Table K.4 – Assessment level
Annex X (informative) Cross-references to the previous edition of this document
Table X.1 – Reference to IEC 60384-14 for clause/subclause or annex
Table X.2 – Reference to IEC 60384-14 for figure/table
Bibliography [Go to Page]

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BS EN IEC 60384-14:2023 Fixed capacitors for use in electronic equipment - Sectional specification. Fixed capacitors for electromagnetic interference suppression and connection to the supply mains, 2024

⨯To continue with accurate pricing,
please select your company type below: