{"id":421750,"date":"2024-10-20T06:37:55","date_gmt":"2024-10-20T06:37:55","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iec-61249-2-462018-2\/"},"modified":"2024-10-26T12:24:34","modified_gmt":"2024-10-26T12:24:34","slug":"bs-en-iec-61249-2-462018-2","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iec-61249-2-462018-2\/","title":{"rendered":"BS EN IEC 61249-2-46:2018"},"content":{"rendered":"

This part of IEC 61249 gives requirements for properties of non-halogenated epoxide non-woven reinforced core\/woven E-glass reinforced surface laminate sheets of thermal conductivity and 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 non-halogenated fire retardants reacted as part of the epoxide polymeric structure. The glass transition temperature is defined to be 105 \u00b0C minimum. Thermal Conductivity is defined to be (1,5 \u00b1 0,2) W\/(m\u2022K).<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
6<\/td>\nCONTENTS <\/td>\n<\/tr>\n
8<\/td>\nFOREWORD <\/td>\n<\/tr>\n
10<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
11<\/td>\n4 Materials and construction
4.1 General
4.2 Resin system
4.3 Metal foil
4.4 Reinforcement
5 Electrical properties
Tables
Table 1 \u2013 Electrical properties <\/td>\n<\/tr>\n
12<\/td>\n6 Non-electrical properties of the copper-clad laminate
6.1 Appearance of the copper-clad sheet
6.1.1 General
6.1.2 Indentations (pits and dents)
6.1.3 Wrinkles
6.1.4 Scratches
Table 2 \u2013 Size of indentations <\/td>\n<\/tr>\n
13<\/td>\n6.1.5 Raised areas
6.2 Appearance of the unclad face
6.3 Laminate thickness
6.4 Bow and twist
Table 3 \u2013 Nominal thickness and tolerance of metal-clad laminate <\/td>\n<\/tr>\n
14<\/td>\n6.5 Properties related to the copper foil bond
Table 4 \u2013 Bow and twist requirements
Table 5 \u2013 Pull-off and peel strength requirements <\/td>\n<\/tr>\n
15<\/td>\n6.6 Punching and machining
6.7 Dimensional stability
6.8 Sheet sizes
6.8.1 Typical sheet sizes
6.8.2 Tolerances for sheet sizes
Table 6 \u2013 Dimensional stability <\/td>\n<\/tr>\n
16<\/td>\n6.9 Cut panels
6.9.1 Cut panel sizes
6.9.2 Size tolerances for cut panels
6.9.3 Rectangularity of cut panels
6.10 Thermal conductivity
Table 7 \u2013 Size tolerances for cut panels
Table 8 \u2013 Rectangularity of cut panels
Table 9 \u2013 Thermal conductivity <\/td>\n<\/tr>\n
17<\/td>\n7 Non-electrical properties of the base material after complete removal of the copper foil
7.1 Appearance of the dielectric base material
7.2 Flexural strength
7.3 Flammability
Table 10 \u2013 Flexural strength requirements <\/td>\n<\/tr>\n
18<\/td>\n7.4 Water absorption
7.5 Measling
7.6 Glass transition temperature and cure factor
Table 11 \u2013 Flammability requirements
Table 12 \u2013 Water absorption requirements
Table 13 \u2013 Measling requirements <\/td>\n<\/tr>\n
19<\/td>\n7.7 Decomposition temperature
7.8 Time to delamination (TMA)
7.9 Halogen content
8 Quality assurance
8.1 Quality system
Table 14 \u2013 Glass transition temperature and cure factor requirements
Table 15 \u2013 Decomposition temperature requirements
Table 16 \u2013 Time to delamination requirements
Table 17 \u2013 Halogen content <\/td>\n<\/tr>\n
20<\/td>\n8.2 Responsibility for inspection
8.3 Qualification inspection
8.4 Quality conformance inspection
8.5 Certificate of conformance
8.6 Safety data sheet
9 Packaging and marking <\/td>\n<\/tr>\n
21<\/td>\n10 Ordering information <\/td>\n<\/tr>\n
22<\/td>\nAnnex A (informative) Engineering information
A.1 General
A.2 Chemical properties
A.3 Electrical properties
A.4 Flammability properties
A.5 Mechanical properties
A.6 Physical properties <\/td>\n<\/tr>\n
23<\/td>\nA.7 Thermal properties <\/td>\n<\/tr>\n
24<\/td>\nAnnex B (informative) Common laminate constructions <\/td>\n<\/tr>\n
25<\/td>\nAnnex C (informative) Guideline for qualification and conformance inspection
Table C.1 \u2013 Qualification and conformance inspection <\/td>\n<\/tr>\n
26<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Materials for printed boards and other interconnecting structures – Reinforced base materials clad and unclad. Non-halogenated epoxide non-woven\/woven E-glass reinforced laminate sheets of thermal conductivity (1.5W\/m K) and defined flammability (vertical burning test), copper-clad for lead-free assembly<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2018<\/td>\n28<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":421761,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-421750","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/421750","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/421761"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=421750"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=421750"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=421750"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}