DeWAL® Low Density PTFE Films for Microwave Cable Insulation
DeWAL® low-density PTFE is used for Coaxial Cable and RF/Microwave transmission lines. DeWAL expanded PTFE (ePTFE) films and tapes offer a multitude of density and thickness options to help the cable designer fine tune signal velocity and improve cable mechanical properties.
DeWAL ePTFE provides excellent draping characteristics that allow proper taping to small diameter wires.
Available in both single-lane Flat Pads and multi-lane Solid Packs, DeWAL ePTFE tapes can accommodate a variety of taping operations and volume needs.
Features:
●Low density PTFE for coaxial cable.
●High porosity results in superior dielectric properties compared to full density PTFE.
●Inherent low-outgassing and flammability resistivity found in PTFE.
●High temperature and chemical resistivity.
●Excellent drape characteristics for tight-radius and high gauge wire diameters.
●Available in heat-set versions with enhanced tensile strength.
Benefits:
●Improved signal velocity as compared to non-porous insulation.
●High porosity makes ePTFE a light-weight design option for long length cables where weight is a concern.
●Multiple material densities allow for layering to fine tune VF or improve mechanical properties of the cable.
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Application note & Design Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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August 1, 2019 |
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175-159 |
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562 KB |
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