DSF/prEN 61249-2-34
Materials for printed boards and other interconnecting structures -- Part 2-34: Reinforced base materials clad and unclad for high frequency application - Non-halogenated modified or unmodified resin system, woven E-glass laminated sheets of defined relative permittivity (equal or less than 3,7 at 1 GHz) and flammability (vertical burning test), copper-clad
| Organization: | DS |
| Status: | inactive |
| Page Count: | 24 |
| ICS Code (Printed circuits and boards): | 31.180 |
scope:
This specification specified requirements for properties of woven E-glass laminated sheet of a thickness of 0,05 mm up to 3,2 mm, of defined flammability (vertical burning test), copperclad.
The glass transition temperature is defined to be 150°C minimum. The relative permittivity is equal or less than 3.7 and dispassion factor is equal or less than 0.0070 at 1 GHz.
Some property requirements may have several classes of performance. The class desired shall be specified in the purchase order otherwise the default class of material will be supplied.
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