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eLibrary > 23/30481622 DC BS EN IEC 61249-2-53 ED1 Materials for printed boards and other interconnecting structures - Part 2-53. Reinforced base materials clad and unclad. Ptfe unfilled laminate sheets of defined flammability (vertical burning test), copper-clad >

23/30481622 DC BS EN IEC 61249-2-53 ED1 Materials for printed boards and other interconnecting structures - Part 2-53. Reinforced base materials clad and unclad. Ptfe unfilled laminate sheets of defined flammability (vertical burning test), copper-clad, 2023

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23/30481622 DC BS EN IEC 61249-2-53 ED1 Materials for printed boards and other interconnecting structures - Part 2-53. Reinforced base materials clad and unclad. Ptfe unfilled laminate sheets of defined flammability (vertical burning test), copper-clad, 2023

30481622-NC.pdf
91_1913e_CD.pdf [Go to Page]
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Construction and Materials [Go to Page]
4.1 Construction
4.2 Resin system
4.3 Metal foil
4.4 Reinforcement
5 Internal marking
6 Electrical properties
7 Non-electrical properties of the copper-clad laminate [Go to Page]
7.1 Appearance of the copper-clad sheet [Go to Page]
7.1.1 General
7.1.2 Indentations (pits and dents)
7.1.3 Wrinkles
7.1.4 Scratches
7.1.5 Raised areas
7.1.6 Surface waviness
7.2 Appearance of the unclad face
7.3 Laminate thickness
7.4 Bow and twist
7.5 Properties related to the copper foil bond
7.6 Heat shock
7.7 Machining
7.8 Dimensional stability
7.9 Sheet sizes and tolerances [Go to Page]
7.9.1 Typical sheet sizes
7.9.2 Tolerances for sheet sizes
7.10 Cut panels size, tolerances and rectangularity [Go to Page]
7.10.1 Cut panel sizes
7.10.2 Size tolerances for cut panels
7.10.3 Rectangularity of cut panels
8 Non-electrical properties of the base material after complete removal of the copper foil [Go to Page]
8.1 Appearance of the dielectric base material
8.2 Flexural strength
8.3 Flammability
8.4 Water absorption
8.5 Glass transition temperature and cure factor
8.6 Decomposition temperature
8.7 Time to delamination (TMA)
8.8 Z-axis expansion
8.9 X/Y-axis expansion
8.10 Thermal Conductivity
9 Quality assurance [Go to Page]
9.1 Quality system
9.2 Responsibility for inspection
9.3 Qualification inspection [Go to Page]
9.3.1 General
9.3.2 Samples
9.3.3 Frequency
9.3.4 Criterion Rule
9.4 Quality Conformance inspection [Go to Page]
9.4.1 General
9.4.2 Inspection lot
9.4.3 Group A inspection
9.4.4 Group B inspection
9.4.5 Group C inspection
9.4.6 Criterion Rule
9.4.7 Rejected lots
9.5 Certificate of conformance
9.6 Safety data sheet
10 Packaging and marking
11 Ordering information
Annex A (informative) Engineering information [Go to Page]
A.1 General
A.2 Electrical properties
A.3 Non-electrical properties of the base material after complete removal of the copper foil
Bibliography [Go to Page]

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23/30481622 DC BS EN IEC 61249-2-53 ED1 Materials for printed boards and other interconnecting structures - Part 2-53. Reinforced base materials clad and unclad. Ptfe unfilled laminate sheets of defined flammability (vertical burning test), copper-clad, 2023

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