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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
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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
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
BS EN 61249-2-42:2010
$142.49