The high temperature demands of faster processors are exceeding the limits of conventional heat sink solutions. Fujikura's Cactus Heat Pipe is designed to meet the most demanding thermal cooling applications. Fujikura has extensive thermal cooling experience, including an understanding gained over 110 years in the interconnect industry and 20 years of manufacturing heat pipes.
High Heat Dissipation Low Thermal Resistance Same Performance at Any Orientation Guaranteed 10 year life Lightweight High Aspect Ration Fins Scalable to Fit Applications
CPU for Desktop CPU for Workstation CPU for Server Any Heat Source up to 200 Watts
Heat Pipe
Container material
Copper (JIS C 1020T)
Thickness of container
0.3 mm
Wicks
Copper fine fiber bundle
Working fluid
Pure water
Length
40-300 mm
Allowable operational temperature range
0-200°C
Allowable inclination angle
-5° ~ +5°
Coating
Ni coating or none
Fins
Material
Aluminum plate
Thermal resistance-the velocity of cooling air
Testing results of thermal resistance against the velocity of cooling air are shown. At low cooling air velocity such as 1 m/s, the obtained thermal resistance was 0.50-0.55 K/W. But with cooling air velocity higher than 2.0 m/s, the thermal resistance can be kept below 0.25 K/W at any orientation.
Testing contents of Cactus Heat Pipe
Testing apparatus is shown. Cactus Heat Pipe is heated by electric heater. (testing conditions) Velocity of cooling air: 1.0 m/s to 3.0 m/s Inclination angle: 0°, 90°, 180°
High Heat Dissipation
