• Impingement cooled – increased performance by 10% to 15% over conventional cooling
• Augmented fins increase air turbulence and significantly lower thermal resistance
• High thermal conductivity fin material increases fin efficiency
• Sizes can be customized to fit application-specific designs

Aavid-Thermalloy's Polar Cap^TM heat sinks can be customized to fit specific application needs. Possible variations include:

• Changes in fin height, fin spacing, overall height, and width
• Customized mounting surface and component attachment configurations
• Availability of various surface finishes for corrosion protection and/or cosmetic requirements

• Airflow lengths are limited to 610 mm (24") for a single piece
• Fin densities up to 20 fins per inch, depending on style, material thickness, and height are available
• Material can be aluminum or copper, with thickness to .2 mm (.006") possible
• Folded-fin styles include lanced and offset, square crests/trough, and round crest trough
• Fins can be attached to the heat dissipation surface using either epoxy or braze for aluminum; braze or solder for copper
• Base material must match fin material, for consistent thermal expansion
• For any holes or cutouts, fins must be EDM wire cut