polymer_dielectric_constant_4

polymer

This is a polymer-based dielectric material engineered to provide a dielectric constant of approximately 4.0, positioning it between standard low-loss polymers (like polyethylene) and higher-permittivity ceramics. Polymers with this dielectric constant are used in high-frequency electronics, printed circuit boards, and microwave/RF applications where controlled permittivity, low loss, and processability are critical. Engineers select such materials when they need to balance electrical performance with ease of manufacturing, thermal stability, and cost-effectiveness—particularly in applications requiring impedance matching, signal integrity, or miniaturization where ceramic alternatives would be too brittle or difficult to process.

PCB substrates and laminatesRF/microwave packagingHigh-frequency signal transmissionAntenna dielectricsElectronic component encapsulationLow-loss insulation layers

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.