标准摘要
[中文适用范围]： 本部分IEC 61249规定了厚度为0.05 mm至3.2 mm的无卤素改性环氧树脂编织E玻璃纤维层压板（铜箔覆面）的性能要求，其阻燃性（垂直燃烧试验）已定义。玻璃化转变温度定义为最低150 °C。相对介电常数等于或小于4.1，损耗因数在1 GHz时等于或小于0.0120。某些性能要求可能有几个性能等级。所需等级应在采购订单中指定，否则将提供材料的默认等级。 [外文原描述]： IEC 61249-2-33:2009 specifies requirements for properties of non-halogenated modified epoxy woven E-glass laminate sheet of a thickness of 0,05 mm up to 3,2 mm, of defined flammability (vertical burning test), copper-clad. The glass transition temperature is defined to be 150 °C minimum. The relative permittivity is equal to or less than 4,1 and the dissipation factor is equal to or less than 0,0120 at 1 GHz.
英文名称Materials for printed boards and other interconnecting structures - Part 2-33: Reinforced base materials, clad and unclad - Non-halogenated modified or unmodified resin system, woven E-glass laminate sheets of defined relative permittivity (equal to or less than 4,1 at 1 GHz) and flammability (vertical burning test), copper-clad