Designed for use as inner-layers in multi-layer board (MLB) designs, RO4835T complements RO4835™ laminates when thinner cores are needed. RO4835T laminates feature high performance material attributes that provide an optimum blend of price, performance and durability with the capability of being fabricated using standard FR-4 (epoxy/glass) processes.

Features

  • Dielectric constant (Dk) of 3.3
  • Excellent oxidation resistance, compared to typical thermoset microwave materials
  • Low loss, low CTE material
  • Flame retardant laminate, UL 94 V-0 rated

Benefits

  • CAF resistant
  • Ease of PCB manufacturing and assembly in line with FR-4
  • Minimizes local variation of dielectric constant
  • Improved MLB design flexibility
  • Improved design flexibility, PTH reliability and automated assembly compatibility

Please see below for a sampling of data for this material formulation. For detailed material information and to use advanced features such as filtering, visit the Laminate Properties Tool.

RO4835T™
Dielectric Constant, @10GHZ (2.5 GHz) Typical (Process) 3.33+/-0.05
Dielectric Constant, @10GHZ (2.5 GHz) Typical (Design) 3.48
Dissipation Factor TAN @10 GHz (2.5 GHz) (Typical) 0.0030
Thermal Coefficient εr -50°C to 150°C ppm/°C (Typical) 35 ppm/C (from -50 to 50C), -35 ppm/C (from 50 to 150C)
Volume Resistivity Mohm (Typical) 1.34x108
Surface Resistivity Mohm (Typical) 1.17x106
Water Absorption D48/50% (Typical) 0.20
Thermal Conductivity W/m/°K (Typical) 50°C ASTM D5470 0.53, 0.52@80°
Coefficient of Thermal Expansion -55° to 288°C ppm/°C (Typical) X 14
Coefficient of Thermal Expansion -55° to 288°C ppm/°C (Typical) Y 16
Coefficient of Thermal Expansion -55° to 288°C ppm/°C (Typical) Z 62
Peel Strength 1 oz (35um) ED Foil lbs/in. (N/mm) (Typical) 3.0 (0.53)
Density gm/cm3 (Typical) 1.81
Flammability Rating UL94 V-0
Lead-Free Process Compatible Y
PIM dBc Typical

Downloads

Description Language File Type File Size
Data Sheet
RO4835T Laminate Data Sheet English
265KB
RO4835T™ 层压板数据资料表 中文
297KB
Fabrication Information
Fabrication Guidelines RO4835T Core-RO4450T Bonding Layers Multi-layer Board Procesing Guidelines English
77KB
Frequently Asked Questions
Improved Flatness of RO4000-FR4 Hybrid Multi-layer Boards English
13KB
(M)SDS/PSIS
RO4000 Series Laminates - PSIS English
152KB
RO4000 Series Laminates - PSIS 中文
214KB
RO4000 Series Laminates - SDS Française
41KB
RO4000 Series Laminates - SDS Deutsch
39KB
RO4000 Series Laminates - SDS Español
38KB

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