Materials for printed boards and other interconnecting structures - Part 2-45: Reinforced base materials clad and unclad - Non-halogenated epoxide non-woven/woven E-glass reinforced laminate sheets of thermal conductivity 1,0 W/(m？K) and defined flammability (vertical burning test), copper-clad for lead-free assembly

IEC？61249-2-45:2018(E)？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 (1,0 ± 0,15)？W/(m？K).