Thermal Extrusions for High-Power Semiconductors

Wakefield offers a wide variety of heat sinks for IGBTs, power modules, and relays

Image of Wakefield's Thermal Extrusions Extruded heat sinks from Wakefield are the most common heat sink used for thermal management today. They are manufactured by pushing hot aluminum billets through a steel die to produce the final shape. The most common aluminum alloy is 6063-T5, but other 6XXX alloys can also be examined as needed. When the material is extruded, the initial sticks are 30 feet to 40 feet in length and are very soft. The material is stretched by grabbing both ends to produce a straight stick. After stretching, the material can be either aired or over-aged depending upon the required final hardness of the material. After the aging process, the material is cut to the final length and any final fabrication (holes, pockets, or other secondary machining) can be done. Extruded heat sinks are usually supplied with a "finish", such as anodizing, which can enhance its thermal performance. The heat sinks can also be supplied with a chromate finish which provides some corrosion protection, or can be used as a primer before a final paint or powder coating is applied. While each extruded shape is unique to the requirements that it was designed for, extruded heat sinks are the most cost-effective cooling solution. Each shape is engineered to achieve optimal thermal and structural performance. Wakefield Thermal partners with a large list of vendors which insures the best thermal solution based on the users system structure and thermal requirements.

  • Best value cost option for high-volume production
  • High aspect thermal extrusions give maximum cooling area with single-piece construction
  • Alternative to bonded fin heat sinks for lower cost solution
  • Various low-cost surface finishes offer cosmetic, corrosion protection, and increased thermal performance
  • Aerospace/defense
  • Power conversion
  • Information technology
  • Renewable energy
  • Telecommunications
  • LED lighting
  • Factory automation
  • Consumer
  • Medical

Thermal Extrusions

ImageManufacturer Part NumberDescriptionLengthWidthAvailable QuantityView Details
HEATSINK EXTRUSION 15.25122547HEATSINK EXTRUSION 15.25"15.250" (387.35mm)3.976" (101.00mm)31 - ImmediateView Details
HEATSINK EXTRUSION 12.32122551HEATSINK EXTRUSION 12.32"12.320" (312.93mm)3.420" (86.87mm)406 - ImmediateView Details
HI-POWER HEATSINK SSR/IGBT/POWER392-300ABHI-POWER HEATSINK SSR/IGBT/POWER11.811" (300.00mm)4.921" (124.99mm)59 - ImmediateView Details
HEATSINK EXTRUSION IGBT/SSR BLK392-180ABHEATSINK EXTRUSION IGBT/SSR BLK7.087" (180.01mm)4.921" (124.99mm)273 - ImmediateView Details
HEATSINK 19832 PROFILE 12122264HEATSINK 19832 PROFILE 12"12.000" (304.80mm)7.550" (191.77mm)19 - ImmediateView Details
HEATSINK FOR PWR MOD/IGBT/RELAY510-14MHEATSINK FOR PWR MOD/IGBT/RELAY14.000" (355.60mm)7.380" (187.45mm)102 - ImmediateView Details
HEATSINK 13694 PROFILE 12122255HEATSINK 13694 PROFILE 12"12.000" (304.80mm)6.960" (176.78mm)97 - ImmediateView Details
HEATSINK 15837 PROFILE 12122256HEATSINK 15837 PROFILE 12"12.000" (304.80mm)7.000" (177.80mm)23 - ImmediateView Details
HEATSINK FOR PWR MOD/IGBT/RELAY510-14UHEATSINK FOR PWR MOD/IGBT/RELAY14.000" (355.60mm)7.380" (187.45mm)169 - ImmediateView Details
HEATSINK FOR PWR MOD/IGBT/RELAY510-12MHEATSINK FOR PWR MOD/IGBT/RELAY12.000" (304.80mm)7.380" (187.45mm)27 - ImmediateView Details
Published: 2016-07-14