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Heat Sink Information
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The right Thermal solutions

What is a Folded Fin Heat Sink?

  • .010" to .032" sheet aluminum or copper folded into fins
  • Fin heights from .020 to 2.75 inches
  • Fin widths up to 24.0 inches
  • Fin densities: 4 to 38 fins per inch
  • The closest fins can be spaced is four times the material thickness
  • Aluminum or copper base
  • High thermal conductivity epoxy to attach fins to base

AluminumFeatures and benefits of folded fin heat sinks:

  • Can be used in both natural and forced convection applications
  • Lightweight
  • Increased surface area to cool more efficiently

Typical Folded Fin Heat Sink Applications:

  • High density cooling of power modules
  • IGBT's or transistors
  • Telecommunications
  • Motor drives
  • Automotive electronics
"We recently had a new heat sink designed. Alexandria Industries did a great job expediting the tooling and getting us product to meet our needs. Lead time often can be critical in meeting our customers' expectations."

Senior Engineering Manager
Automotive Electronics Manufacturer