Thermally conductive low loss laminate


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RF-35TC offers a "best in class" low dissipation factor with high thermal conductivity. This material is best suited for high power applications where every 1/10th of a dB is critical and the PWB substrate is expected to diffuse heat away from both transmission lines and surface mount components such as transistors or capacitors. RF-35TC is a PTFE based, ceramic filled fiberglass substrate. It will not oxidize, yellow or show upward drift in dielectric constant and dissipation factor like its synthetic rubber (hydrocarbon) competitors. 

The low Z axis CTE and temperature stable Dk are critical for both narrow band and broad band overlay couplers. The low X and Y CTE values are crucial for maintaining critical distances between trace elements in a printed filter. The extremely low Df of 0.0011 and high thermal conductivity are particularly suited for power amplifier applications.



  • "Best in Class" loss tangent
  • Exceptional thermal management
  • DK Stability across a broad temperature range
  • Enhanced antenna gains/efficiencies
  • Excellent adhesion to Very Low Profile Copper



  • Filters, couplers & power amplifiers
  • Antennas
  • Satellites


Product Name DK+ ToleranceDFData SheetSafety Data SheetProcessing GuidelinesProduct Description
RF-35TC 3.50  0.0011 Download - -

Thermally conductive low loss laminate




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