Thermal conductive sheet

Thermal conductive sheet Carbon fiber type

This thermal conductive sheet has an extremely high thermal conductivity in the direction perpendicular to the sheet plane and is best for heat dissipation of devices that have a high heat generation density such as LSIs.

  • Product name
    EX20000C4S series
  • Features
    • Thermal conductivity:40 W/m·K, Hardness:70 - 80(Shore OO)
    • The thermal conductive sheets of this series have reduced thermal resistance.
    • Sheets with a thickness of 0.3 mm are available, and they can replace thermal grease, thermal compounds, and other heat dissipation materials.
    • Suitable for heat measures for high-performance devices such as high heat generating LSIs for high-speed communications used in data center servers and routers.

Product Lineup



Product name EX20000C4S series Remarks
Features High degree of thermal conductivity; Thin sheets -
Thermal conductivity (W/m·K) 40 Estimated bulk
thermal conductivity
Main component Silicone -
Color Gray -
Hardness 70 - 80 Shore OO
ASTM D2240
Available thickness (mm)* 0.3 - 0.5 -
Specific gravity 2.4 -
Volume resistance (Ω・cm) 10 JIS K7194
Flame retardance V-0 UL94
File No.E63260
  • The values in the table above are not guaranteed product values.
  • *Thickness of a thermal conductive sheet only. Release films are not included
    Available in 0.1 mm increments.

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Heat dissipation of LSIs and other devices with large heat generation used for applications such as mobile devices, TVs, PCs, wireless communication base stations, wired communication base stations, servers, and automotive equipment.

Relationship between thermal resistance, compression ratio and pressure

Test Condition

Specimen area:3.14cm2
Measuring condition:23°C±5°C 60%±20%RH
Setting electric power of heater:24W
Unit of thermal resistance:°C・cm2/W



Note on the characteristic data given - Data on the characteristics of the products described in this page based on the results of evaluations carried out by the company. This does not guarantee that the characteristics of the product conform with your usage environment. Before use, review the usage conditions based on evaluation data obtained from the equipment and substrates actually used.

Product Lineup