The AAVID THERMALLOY 320105B00000G is a passive heat sink specifically designed for TO-5 packages. This heat sink features an extruded collar with a convenient screw mount, making it easy to install and secure. Made from high-quality aluminum material, it effectively dissipates heat generated by electronic components, maximizing their performance and longevity. With a thermal resistance of 63°C/W, it efficiently transfers heat away from the TO-5 package, preventing overheating and ensuring optimal operation. The black anodized finish not only enhances its aesthetic appeal but also improves its thermal performance by increasing surface area for better heat dissipation.