BS EN 61249-2-42:2010
$142.49
Materials for printed boards and other interconnecting structures – Reinforced base materials clad and unclad. Brominated epoxide non-woven / woven E-glass reinforced laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly
Published By | Publication Date | Number of Pages |
BSI | 2010 | 26 |
This part of IEC 61249 gives requirements for properties of brominated epoxide non-woven reinforced core/woven E-glass reinforced surface laminate sheets of defined flammability (vertical burning test), copper-clad for lead-free assembly in thicknesses of 0,60 mm up to 1,70 mm. The flammability rating is achieved through the use of brominated fire retardants reacted as part of the epoxide polymeric structure. The glass transition temperature is defined to be 105 °C minimum.
Some property requirements may have several classes of performance. The class desired should be specified on the purchase order, otherwise the default class of material will be supplied.
PDF Catalog
PDF Pages | PDF Title |
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6 | English CONTENTS |
8 | 1 Scope 2 Normative references 3 Materials and construction 3.1 Resin system |
9 | 3.2 Metal foil 3.3 Reinforcement 4 Internal marking 5 Electrical properties 6 Non electrical properties of the copper-clad laminate 6.1 Appearance of the copper-clad sheet Tables Table 1 – Electrical properties |
11 | 6.2 Appearance of the unclad face 6.3 Laminate thickness 6.4 Bow and twist Table 2 – Nominal thickness and tolerance of metal-clad laminate Table 3 – Bow and twist requirements |
12 | 6.5 Properties related to the copper foil bond 6.6 Punching and machining Table 4 – Pull-off and peel strength requirements |
13 | 6.7 Dimensional stability 6.8 Sheet sizes 6.9 Cut panels Table 5 – Dimensional stability |
14 | 7 Non electrical properties of the base material after complete removal of the copper foil 7.1 Appearance of the dielectric base material Table 6 – Size tolerances for cut panels Table 7 – Rectangularity of cut panels |
15 | 7.2 Flexural strength 7.3 Flammability Table 8 – Flexural strength requirements Table 9 – Flammability requirements |
16 | 7.4 Water absorption 7.5 Measling 7.6 Glass transition temperature and cure factor 7.7 Decomposition temperature Table 10 – Water absorption requirements Table 11 – Measling requirements Table 12 – Glass transition temperature and cure factor requirements Table 13 – Decomposition temperature requirements |
17 | 7.8 Time to delamination (TMA) 8 Quality assurance 8.1 Quality system 8.2 Responsibility for inspection 8.3 Qualification inspection 8.4 Quality conformance inspection Table 14 – Time to delamination (TMA) |
18 | 8.5 Certificate of conformance 8.6 Safety data sheet 9 Packaging and marking 10 Ordering information |
19 | Annex A (informative) Engineering information |
21 | Annex B (informative) Common laminate constructions |
22 | Annex C (informative) Guideline for qualification and conformance inspection Table C.1 – Qualification and conformance inspection |
23 | Bibliography |