polymer_dielectric_constant_46
polymerThis is a polymer-based dielectric material, likely a thermoset or thermoplastic resin formulated or filled to achieve a dielectric constant around 4.6—a moderate value useful for electrical insulation applications. Polymers in this dielectric range are widely employed in electronics packaging, circuit boards, and high-frequency components where controlled permittivity reduces signal loss and crosstalk. The material is chosen over lower-permittivity alternatives (like unfilled polymers) in applications requiring improved electrical performance, thermal management, or mechanical stiffness, and over higher-permittivity ceramics where lower density, easier machinability, or lower cost are important.
PCB substrates and laminatesRF/microwave circuit boardsElectronic encapsulation and pottingHigh-frequency signal transmissionElectrical insulation layersMicroelectronics packaging
Compliance & Regulations
?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Dielectric Constant (Relative Permittivity)(εr) | — median of 2 measurements | - | — | — |
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.