• Sparsely configured pin fin heat sinks generate substantial cooling power in limited airspeed environments
• The sparse pin fin configuration allows weak incoming air streams to efficiently enter and exit the pin array, thus providing efficient cooling in low airspeed environments
• Sparsely configured pin fin heat sinks are highly suitable for heavily populated boards in which low pressure drop is an asset
• Cool Innovations is committed to the provision of custom parts in a cost effective fashion, generally without any tooling or setup charges. Customizable parameters include length, width and height
• Cool innovations' heat sinks are lapped in order to reduce the contact resistance between the heat sink and the device
• Heat sinks are vailable with double-sided tape as well as with mechanical attachment methods. For more
• Sparsely configured pin fin heat sinks range from a footprint of 0.50" x 0.50" to a footprint of 2.00" x 2.00" and from a height of 0.2" to a height of 1.4"

Manufacturing Technology

• Pin fin heat sinks for SM devices are manufactured via the Cold Forging process
• The cold forging process allows for the use of highly conductive copper and alumium alloys
• The process ensures that no air bubbles, cavities or any other impurities are trapped within the material

Materials

• Aluminum pin fin heat sinks are forged from pure aluminum (AL1100)
• The thermal conductivity of AL 1100 is 1510 btu/in ft2 hr of. (~50% higher than AL 380, a common cast alloy)
• Copper pin fin heat sinks are forged from pure copper (CDA 110)
• The thermal conductivity of CDA 110 is 2712 btu/in ft2 hr of. (~100% higher than AL 380, a common cast alloy).

Base Finish

• Pin fin heat sinks for SM devices are lapped
• The lapping process significantly improves the flatness and the surface finish of the base of the heat sink, when compared to conventional base finishing processes
• The contact resistance between the heat sink and the device is reduced significantly following the completion of the lapping process
• Flatness: Better then 0.001 inch/inch
• Surface Finish: 16 RMS or better
• *Heat sinks with a footprint smaller than 0.5" x 0.5" are not lapped

Plating (optional)

• Anodize - black, hard black, clear, red (Aluminum)
• Zinc - Black (Copper)
• Nickel (electroless or electrolytic) (Aluminum and Copper)

Attachment Methods - For more

All heat sinks are 6/6 RoHS compliant