Advanced Thermal Solutions, Inc. (ATS) now has 32 heat sinks design for convection cooling of high heat flux LEDs. Cooling performance reaches more than 60 K (∆Ths-ambient) at 50.0 W of power dissipation, depending on model.

The STAR heat sinks are made from lightweight aluminum in a round profile that fits common LED applications. Cooling fins are arrayed in a round, star-like cross section that optimizes thermal performance in local air flow. A flat base at one end allows secure, direct mounting of LEDs. Integral threads on the base perimeter allow attachment of brackets and other hardware. An inner thread on most models allows convenient attachment of LED lens mounts.

ATS STAR heat sinks are available in lengths from 25 to 1,000 mm (0.98 to 39.37 in). Standard diameter is 45 mm (1.77 in). Each heat sink features a black anodized finish that provides corrosion resistance, electrical insulation, and improved thermal performance. All heat sinks within the series are RoHS compliant.

ATS provides more LED cooling information on its website, Qats.com, including a comprehensive LED Cooling Resource Kit. The free kit includes useful, downloadable technical resource materials for engineers responsible for the proper performance of LED designs. Contributors include Arrow Electronics and globally-recognized thermal management experts.