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Heat Pipes

High Performance Round and Flat Heat Pipes


Round Heat Pipes  
(Standard Sizes)
Length 200-300mm
Diameter 4mm to 8mm

Flat Heat Pipes 
(Standard Sizes)
Length 100mm to 250mm
Heights 2.5 mm to 4.5mm

Custom sizes for flat and round heat pipes available.

Heat pipess are heat transfer device that their wick structures and embedded liquid enables them to have a very high heat flux transport capability which can be 10-20 times higher than the equivalent diameter solid copper pipe. The application of heat pipes in thermal management of electronics has increased notably in recent years because of PCB space constraints and the increasing power density.

Heat Pipe Tool

How Does a Heat Pipe work?

heat pipe flow diagram

They are used to transfer heat with minimal temperature difference from the heat source (evaporator) to the heat sink (condenser) as well as to spread the heat across a surface. Many factors have to be considered in choosing a heat pipe for a specific application. The effective length (Leff) is a useful indicator of the length of a heat pipe as employed in a specific application (accounting for evaporation and condensation lengths). Heat pipes come in round or flat shapes. Flat heat pipes are easier to attach to heat dissipating components while the round heat pipes offer advantages for certain fin configurations at the condenser end.

Heat Pipe Features & Benefits

  • Tube material: copper
  • Wick structures: grooved or sintered copper powder
  • High thermal conductivity
  • Light weight
  • Fast thermal response

Applications for Heat Pipes

    • Compact Electronics Enclosures
    • Aerospace
    • Medical
    • Consumer Electronics
    • HVAC