IEC 61249-2-54 ED1

Materials for printed boards and other interconnecting structures - Part 2-54: Reinforced base materials clad and unclad - Halogenated modified or unmodified resin system, woven E-glass laminate sheets of defined dissipation factor (less than 0,005 at 10 GHz) and flammability (vertical burning test), copper-clad for high speed applications

Scope

IEC 61249-2-54 ED1 gives requirements for properties of high-performance resin, modified or unmodified, woven E-glass laminate sheet 0,05 mm up to 3,2 mm of defined flammability (vertical burning test), copper-clad for high-speed application. The glass transition temperature is defined to be 170 °C minimum. The dissipation factor is less than 0,005 0 at 10 GHz. Some property requirements can have several classes of performance. It is important for the class desired to be specified in the purchase order, otherwise the default class of material will be supplied.
Its flame resistance is defined in terms of the flammability requirements of 7.3.
Some property requirements can have several classes of performance. It is important for the class desired to be specified on the purchase order otherwise the default class of material will be supplied.