RT/duroid 5880 feature by feature: Dk 2.20 ± 0.02, Df 0.0009, 0.02% moisture uptake and the traits that map onto five demanding application families.
Three electrical traits define the material’s reputation:
The material also behaves outside the lab:
Features that matter to the factory as much as the design:
The feature set maps onto five demanding application families:
High-performance characteristics like these are why the material keeps being specified for demanding high-frequency work — a checklist worth keeping at hand whenever a design review questions the material choice.
Frequently Asked Questions
At ±0.02 around a nominal 2.20, the tolerance is tight enough that array elements and filters behave identically panel to panel — critical for phased arrays and any phase-sensitive design.
0.02% by weight. Absorbed water raises Dk and loss, so a material that barely absorbs any keeps its electrical performance stable in humid environments instead of drifting.
Yes — RT/duroid 5880LZ uses a low-density filler system for weight-sensitive platforms such as airborne and portable systems, at a small trade in other properties.
Yes. It meets lead-free processing standards, so it fits modern reflow profiles and environmental requirements without special exceptions.
Send your frequency band and environment and we will confirm which of these features your design actually needs, plus the stack-up to match.
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