Heat Sink Thermal Extrusions

Wakefield Thermal Heat Sink Thermal Extrusions are available in 1- and 3-foot lengths and are the most common heat sinks used for thermal management. These heat sinks are manufactured by pushing hot aluminum billets through a steel die to produce the final shape. Extruded heat sinks are usually supplied with a finish such as anodizing, which can enhance their thermal performance. Wakefield Thermal Heat Sink Thermal Extrusions are engineered to achieve optimal thermal and structural performance. 

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Product
Designed for
Heatsink Material
Fin Style
Thermal Resistance
Length
Width
Height
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 8.35" Wide, Flatback Heat Sink 13668 xx4937
Datasheet
44In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 0.9 C/W 12 in 8.35 in 2 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 5.375", Flatback Heat Sink 6037 xx5045
Datasheet
37In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.8 C/W 12 in 5.375 in 1.312 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 6.50", Flatback Heat Sink 6664 xx4509
Datasheet
59In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.3 C/W 12 in 6.5 in 1.6 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 6.624" Wide, Flatback Heat Sink 16524 xx7031
Datasheet
37In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.3 C/W 12 in 6.624 in 1.312 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 7.574" Wide, Flatback Heat Sink 21910
Datasheet
49In Stock
1On Order
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 0.65 C/W 1 ft 7.57 in 3.15 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 4.125", Flatback Heat Sink 2656 xx5138
Datasheet
43In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.9 C/W 12 in 4.125 in 1.75 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 36", 7.00" Wide, Flatback Heat Sink 15837
Datasheet
52In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 0.3 C/W 36 in 7 in 2.27 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 9.333" W, 12" L, Flatback Heat Sink 16386
Datasheet
53In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.04 C/W 12 in 9.333 in 0.905 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 5.86" W, 12" L, Flatback Heat Sink 14461
Datasheet
47In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.1 C/W 12 in 5.86 in 2 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", High Aspect Ratio, Heat Sink 15817, 12x7.38x3.1"
Datasheet
33In Stock
Min.: 1
Mult.: 1

Extrusions Power Modules, IGBTs Aluminum Rectangular Fin 12 in 7.375 in 3.136 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 11.875" Wide, Flatback Heat Sink 17099
Datasheet
16In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 0.4 C/W 12 in 11.875 in 2.594 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 13.381" Wide, Flatback Heat Sink xx5429
Datasheet
47In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 0.65 C/W 12 in 13.381 in 1.312 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 4.60" Wide, DC/DC Heat Sink Extrusion 12614
Datasheet
7In Stock
100On Order
Min.: 1
Mult.: 1

Extrusions DC/DC Converter Aluminum Extruded Radial Fin 2.1 C/W 12 in 4.6 in 0.9 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 36", 5.50", Flatback Heat Sink 13760 xx2199
Datasheet
8In Stock
25Expected 2026-07-23
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.2 C/W 36 in 5.5 in 2 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 5.748" W, 12" L, Flatback Heat Sink xx8867 19155
Datasheet
6In Stock
50Expected 2026-06-26
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.57 C/W 12 in 5.748 in 0.905 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 36", 9.24" Wide, Flatback Heat Sink 19035
Datasheet
2In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 0.62 C/W 36 in 9.24 in 2.53 in
Wakefield Thermal Heat Sinks 19275 Extrusion Profile Cut to 12 Inches, 12x7.4x2.17 Inch, High Aspect Ratio
Datasheet
23In Stock
Min.: 1
Mult.: 1

Extrusions Power Modules, IGBTs Aluminum Rectangular Fin 12 in 7.682 in 2.165 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 2.40" Wide, DC/DC Heat Sink Extrusion 12613
Datasheet
49In Stock
Min.: 1
Mult.: 1

Extrusions DC/DC Converter Aluminum Extruded Radial Fin 4.1 C/W 12 in 2.4 in 0.9 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 4.702" Wide, Mounting Shelf Extrusion 14264
Datasheet
60In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.8 C/W 12 in 4.702 in 3.312 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 5.00", H Style Heat Sink 6542 xx1245
Datasheet
61In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 0.72 C/W 12 in 5 in 5 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 7.34" W, 12" L, Flatback Heat Sink xx5523 14433
Datasheet
26In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.8 C/W 12 in 7.34 in 0.875 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 4.519" W, 12" L, Flatback with Mounting Feet 19133
Datasheet
40In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 2.4 C/W 12 in 4.519 in 1.918 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 36", 3" Wide, Flatback Heat Sink 9099
Datasheet
17In Stock
Min.: 1
Mult.: 1

Extrusions Aluminum Extruded Radial Fin 1.5 C/W 36 in 3 in 2 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 2.22" Wide, DC/DC Heat Sink Extrusion 14192
Datasheet
49In Stock
Min.: 1
Mult.: 1

Extrusions DC/DC Converter Aluminum Extruded Radial Fin 0.6 C/W 12 in 2.22 in 0.93 in
Wakefield Thermal Heat Sinks Extrusion Cut to Length, 12", 2.28" Wide, DC/DC Heat Sink Extrusion 14362
Datasheet
45In Stock
Min.: 1
Mult.: 1

Extrusions DC/DC Converter Aluminum Extruded Radial Fin 4 C/W 36 in 2.28 in 0.455 in