TF-4040 Graphite Thermal Sheet 40x40mm

Graphite Thermal Sheet 40x40mm

A graphite thermal interface material able to withstand very high temperatures.  Typically used with TEGs (ThermoElectric Generators).

Note: All TEGs ship with graphite foil pre-applied to both sides.

  • Suitable to be used with TEGs and TECs as a TIM (thermal Interface Material).
  • Used as replacement for the graphite foil that ships with Power Generators (TEG)
  • Thermal conductivity 10 W/m K (through plane)
  • Just peel off protective paper and apply to TEG
  • Able to withstand temperatures up to 450C
  • Has ultra thin adhesive on one side to hold it to TEG
  • 40 x 40 mm (1.57 x 1.57 inches)
  • 0.1 mm thick (0.004 inches)
  • Weight: 0.3 gram
  • Can be cut down to fit smaller TEGs and TECs


  • Part Number: TF-4040
image of graphite foil thermal interface material sheet. Used to increase heat transfer between two surfaces such as a TEG and a heat source.
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  • Item #: TF-4040
  • Manufacturer's Product Number: TF-4040
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Price $2.00
10 or more $1.70 each
25 or more $1.60 each
50 or more $1.50 each