CENELEC - EN IEC 61249-2-46
Materials for printed boards and other interconnecting structures - Part 2-46: Reinforced base materials clad and unclad - Nonhalogenated 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
Organization: | CENELEC |
Publication Date: | 1 March 2018 |
Status: | active |
Page Count: | 28 |
ICS Code (Printed circuits and boards): | 31.180 |
scope:
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 °C minimum. Thermal Conductivity is defined to be (1,5 ± 0,2) W/(m•K).