polymer_dielectric_constant_178

polymer

This is a polymer-based dielectric material, likely a composite or engineered polymer formulation designed to achieve a dielectric constant around 1.78—notably higher than conventional unfilled polymers. The designation suggests a synthetic or specialty polymer developed for electrical insulation, energy storage, or high-frequency applications where controlled dielectric properties are critical. Polymers in this class are used in capacitors, printed circuit boards, cable insulation, and advanced electronics where balancing dielectric performance with mechanical stability and processability is essential; they offer advantages over ceramics in weight, machinability, and manufacturing flexibility, though with lower temperature limits.

capacitor dielectricsPCB substrates and laminatescable and wire insulationRF/microwave electronicsenergy storage deviceshigh-frequency circuit applications

Compliance & Regulations

?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
Units:
siimperial
PropertyValueUnitConditionsSource
Dielectric Constant (Relative Permittivity)(εr)
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median of 2 measurements
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Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Safety & Biocompatibility

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.