GRAPHITE HYBRID SHEET / GHS-25

Stacked layers work together to prevent hot spots and returned heat to the device.

  • Ideal for attaching to the inside of plastic case of electronic devices.
  • Low thermal conductivity layer reduces speed of heat transfer to graphite layer, prevents hot spots from occurring, and impedes heat reflection back to the heat source.

  • One side heat-resistant adhesive tape.

  • Addition of low heat reflection layer helps to reduce the temperature of heat source.

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Specifications

Property Unit Measurement
method		 GHS-25
Thickness mm － 0.6
Thermal Conductivity
(Through-plane direction*1
of our product)		 W/m･K Hot wire method 3.0±1.0
Thermal Conductivity
(Surface direction*1
graphite layer only)		 W/m･K Laser flash
method		 ≥1,400
Operating Temperature ℃ － -40 ～ 150
*1 Please refer to Figure 1. on the right for the thermal conductivity measurement direction
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Figure1

GHS Figure 1

Cross-section view

GHS Cross Section

Performance comparison

Unit: °C
Heating element
temperature		 Plastic board
temperature
No countermeasures 90.5 48.2
Graphite sheet only 103.7 (+13.2) 39.6 (-8.6)
GHS-25 83.6 (-6.9) 35.9 (-12.3)
GHS Figure 2

Application Example

GHS-25-Surface temperature observation