Radian Heatsinks
Standard and custom Thermal Solutions
Radian Heatsinks has been committed to helping our customers with full-service thermal solutions delivered to a variety of industries since 1974. Radian offers both standard, and custom heatsinks for a wide range of applications including Plate fin heatsink, Round pin Heatsink, Elliptical Finned heatsink, and Fansinks. Radian's heatsinks are manufactured using all the standard methods including machining, extrusion, die-casting, forging, stamping, and skiving.
Featured Product - PCIe Fansink

A PCIe Fansink is specifically designed for a PCI Express card that has a max height of 14.48mm. These PCIe Fansinks are also useful for other low profile applications. We also offer passive PCIe heatsinks with pushpin, stick-on, screw, and BGA EZ-Snap heatsink versions.

Heatsink Types
With over 40 years of experience, Radian has manufactured all major types of heatsinks that are available. If the particular style is not shown, please contact our team to discuss your needs.
Vapor Chamber Heatsinks
A Vapor chamber heatsinks uses aluminum or copper fins for high performance
Featured Product - EZ Snap Clip

Our EZ Snap clip provides a high performance heatsink while not requiring any board changes. This is very useful when solving thermal issues that are identified late in development when the PCB is fixed, and a redesign would be costly, or take too long. The design also reduces any impact on nearby component placement, and is useful with high density designs as signal routing is not compromised.

Heatsink Manufacturing Processes
Founded as a casting company in 1974, Radian has used a wide range of manufacturing methods to create heatsinks, and many other types of products. All major manufacturing methods for Aluminum, and Copper are available. If the particular manufacturing method is not shown below, please contact our team to discuss your needs.
Machined heatsinks
Machined Heatsinks are an ideal choice for smaller production requirements as there is no Non Recurring Engineering charge
Extruded heatsinks
Extruded Heatsinks are manufactured when material is pushed through a die of the desired cross-section
Die-Cast heatsinks
A Die-cast Heatsink uses the process of forcing molten metal into a molded cavity under high pressure
Stamped Fin heatsinks
Stamped Fin Heatsinks can be made in Aluminum, or Copper, and typically used with vapor chambers
Al/Cu Skived heatsinks
Skived Heatsinks offer excellent thermal performance and are manufactured using a single metal block
Al /Cu Forged heatsinks
Forged Heatsinks are manufactured by the shaping of aluminum or copper using localized compressive forces
Active Cooling Systems
Active cooling refers to cooling technologies that rely on an external device to enhance heat transfer. Through active cooling technologies, the rate of fluid flow increases during convection, which dramatically increases the rate of heat removal. Radian offers many solutions such as a Thermoelectric Cooler and Liquid Cooled Cold Plate.
Thermal Solutions for tough requirements

We provide rapid, and innovative thermal solutions for world wide leaders in many market segments including Storage, Telecom, and Wireless broadband. With the continual need to process data faster, heat is a major issue, and thermal problems are often not apparent until beta testing. Our experienced team will assist your engineers to resolve these issues before they become a serious problem. Our Thermal Engineers are also available to conduct thermal analysis and create design solutions that are both cost effective, and production proven.
We focus on our skills
Radian is committed to the continuous improvement of all processes, products, and services provided by meeting, or exceeding the expectations of our customers. In the last twenty years, over 54 million parts have shipped from our US and Asia based production facilities.
Die-Cast Heatsink manufacture
This paper helps define the process of forcing molten metal under high pressure to create Die-Cast Heatsinks
Beating the Heat with Thermal Simulation
Simulation helps an electronic product operate safely at a higher ambient temperature.
How Copper Heat Pipes Work
Radian's Micro Heat Pipes offer improved performance over standard heatpipes requiring 3~8mm diameters.
E-Coated Heatsink white paper
We compare the performance of an E-Coated Heatsink to an Anodized Heatsink
Radian News
- Radian achieves ISO 9001:2015 December 21, 2017
- Radian Thermal Products Appoints Malkiat Singh to Director, Advanced Cooling Systems November 16, 2017
- Changes to Radian Thermal Products European Team August 23, 2017
- PCIe Heatsinks August 20, 2017
- Release of E-Coated Heatsink White Paper July 28, 2017
- Radian Thermal Products Expands Europe Team May 24, 2017
- Radian Thermal Products Appoints Thierry Sin as President and Chief Executive Officer April 14, 2017
- How do Copper Heat Pipes Work? July 18, 2016
- Radian Thermal Products Appoints Director of Sales and Marketing May 2, 2016
- Radian Thermal Products Appoints Regional Sales Manager for Canada June 1, 2015
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Radian has been assessed by NSF-ISR and found to be in conformance to ISO9001:2015. All of our products are RoHS-6 Compliant, as defined by EU Directive 2011/65/EC of the European Parliament and of the Council of June 8th 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment, unless otherwise requested. RoHS Certificate of Compliance is available upon request.