标准摘要
[中文适用范围]： IEC 61249的这一部分给出了对非卤化环氧无纺布增强芯/无纺布E玻璃增强表面层压板的导热性和规定可燃性（垂直燃烧测试）的性能要求，用于无铅组装的铜包层厚度0.60 毫米至 1.70 毫米。可燃性等级是通过使用作为环氧化物聚合物结构的一部分发生反应的非卤化阻燃剂来实现的。玻璃化转变温度定义为最低 105 °C。热导率定义为 (1,5 ± 0,2) W/(mK)。 [外文原描述]： IEC 61249-2-46:2018 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 °C minimum. Thermal Conductivity is defined to be (1,5 ± 0,2) W/(m•K).
英文名称Materials for printed boards and other interconnecting structures - Part 2-46: Reinforced base materials clad and unclad - Non-halogenated epoxide non-woven/woven E-glass reinforced laminate sheets of thermal conductivity 1,5 W/(m•K) and defined flammability (vertical burning test), copper-clad for lead-free assembly