Pyralux® TFH

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Pyralux® TFH all-polyimide double-sided copper-clad laminate


Pyralux® TFH all-polyimide double-sided copper-clad laminate features an adhesiveless, all-polyimide dielectric layer and a copper foil optimized for minimal insertion loss. This material exhibits excellent low loss performance, enabling remarkable signal integrity in high-speed digital and high-frequency circuit applications. Offered in a variety of both dielectric and conductor thickness.

Features & Benefits

  • Low loss dielectric and conductor layers
  • Excellent thermal resistance from all-polyimide dielectric
  • Minimal variance in dielectric thickness for consistent circuitry performance
  • High flex and bending reliability due to excellent adhesion between dielectric and copper foil

Pyralux® TFH Technical Documents

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    Pyralux® TFH Product Series Properties

    Property Group Property Name Value Test Method
    Dielectric Dielectric Constant (Dk) 10GHz 3.2 ASTM D2520 / IPC-TM-650 2.5.5.3
    Dielectric Strength (V/μm)   ASTM D149
    Loss Tangent (Df) 10GHz 0.003 ASTM D2520 / IPC-TM-650 2.5.5.3
    Electrical / Insulation Surface Resistance (Ω) >1x10^15 IPC-TM-650 2.5.17
    Volume Resistivity (Ω・cm) >1x10^16 IPC-TM-650 2.5.17
    Environmental Moisture Absorption (%) 0.5 IPC-TM-650 2.6.2
    Mechanical Elongation at Break (%) 45 IPC-TM-650 2.4.19
    Tensile Modulus (Gpa) >7 IPC-TM-650 2.4.19

    Pyralux® TFH Product Properties

    Property Name Form Factor Package Adhesive Type Copper Thickness (μm) Copper Thickness (oz) Copper Type Dielectric Thickness (μm) Dielectric Thickness (mil)
    TFH122512 Double-sided FCCL Roll Adhesive-less all polyimide 12 0.33 RA or ED 25.0 1.00
    TFH122512C Double-sided FCCL Roll Adhesive-less all polyimide 12 0.33 RA or ED 25.0 1.00
    TFH125012 Double-sided FCCL Roll Adhesive-less all polyimide 12 0.33 RA or ED 50.0 2.00
    TFH182518 Double-sided FCCL Roll Adhesive-less all polyimide 18 0.50 RA or ED 25.0 1.00
    TFH185018 Double-sided FCCL Roll Adhesive-less all polyimide 18 0.50 RA or ED 50.0 2.00