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 heatsinks, Round pin Heatsinks, Elliptical Finned heatsinks, 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

PCIe Heatsink

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.

PCIe Heatsink

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.

Plate Fin Heatsinks

Platefin Heatsink
Plate Fin Heatsinks are optimized for airflow which is unidirectional and parallel

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Round pin Heatsinks

copper roundpin heatsink
Round Pin Heatsinks are suitable for environments with low airflows

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Elliptical Fin Heatsinks

Elliptical Fin Heatsink
Elliptical Fin Heatsinks reduce vortex effects and are ideal for low airflow

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5 or 12 volt Fansinks

Fansinks provide airflow for more challenging thermal environments

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Vapor Chamber Heatsinks

vapor chamber with Stamped Fin heatsink

A Vapor chamber heatsinks uses aluminum or copper fins for high performance

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Heatpipes for Heatsinks

heatsink with heatpipes
Heatpipes transfer heat away from the source to spread the heat

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Featured Product - EZ Snap Clip

Ezsnap Heatsink

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.

Ez Snap Clip

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

Custom Heatsink

Machined Heatsinks are an ideal choice for smaller production requirements as there is no Non Recurring Engineering charge

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Extruded heatsinks

Extruded heatsink

Extruded Heatsinks are manufactured when material is pushed through a die of the desired cross-section

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Die-Cast heatsinks

Diecast heatsink

A Die-cast Heatsink uses the process of forcing molten metal into a molded cavity under high pressure

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Stamped Fin heatsinks

Stamped Fin Heatsink

Stamped Fin Heatsinks can be made in Aluminum, or Copper, and typically used with vapor chambers

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Al/Cu Skived heatsinks

Skived Heatsink

Skived Heatsinks offer excellent thermal performance and are manufactured using a single metal block

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Al /Cu Forged heatsinks

Forged Heatsink

Forged Heatsinks are manufactured by the shaping of aluminum or copper using localized compressive forces

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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

Thermal Analysis

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

diecast heat-sink

This paper helps define the  process of forcing molten metal under high pressure to create Die-Cast Heatsinks

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Beating the Heat with Thermal Simulation

Thermal Analysis

Simulation helps an electronic product operate safely at a higher ambient temperature.

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How Copper Heat Pipes Work


Radian's Micro Heat Pipes offer improved performance over standard heatpipes requiring 3~8mm diameters.

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E-Coated Heatsink white paper


We compare the performance of an E-Coated Heatsink to an Anodized Heatsink

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Radian Heatsink Catalog

Radian catalog

Standard Heatsink Product Guide

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RoHSISO 9001:2015Radian 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.

"Let us take on your cooling challenges!"