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Heat pipe heatsink

Mini Modular Fan Cooler - Heat Sink

Mini Modular Fan Coolers (MMFC) are designed for applications with space constraints over the heat source. In this situation, there is insufficient space for a direct mounted heatsink, or airflow restrictions prevent adequate air passage. By using a heatpipe, the heat is carried to an area large enough to hold the required heat sink and fan.

Enertron Mini Modular Fan Cooler

Heat Sink And Thermal Design

Typically, these heatsinks are comprised of a heat collector, a heatpipe, a finned heat sink structure, and an axial fan. The heatsink is mounted to the heat source using the heat collector, which ensures proper interfacing to the source. The heat is then conducted to the heat pipe. The heatpipe transports the heat to the heatsink. Typically, an axial fan is mounted to the heatsink, which provides the forced convection to dissipate the heat to the ambient air.


The Mini Modular Fan Cooler was used extensively in Pentium™ II laptop computers. As laptop computers became thinner, axial fans could no longer be used for the heat sink solutions. A new generation of laptop heatsinks were created to meet the new challenges, see Slim Heat Sink. Though the MMFC is no longer used in laptop PCs, it continues to be a viable thermal solution/heat sink for other applications.

Best Applications for Mini Modular Fan Cooler - Heat Sink:

Heat Pipe HeatsinkHeat Sink Testing
  • Mobile computers
  • Laptop PCs
  • Land-based mobile computers
  • Industrial computers where space is limited
  • Digital cameras
  • Scientific and medical instruments
  • Telecommunications modules

To learn more about design and manufacturing of MMFC or if you have an application with limited space for thermal solution and heatsink, please contact one of our engineers.

Heat Pipe And Thermal Solutions