Custom heat sinks
Heat sinks dissipate heat from electronic components and assemblies
Custom heat sinks are metal parts (mainly aluminium, might be copper) with the largest possible contact surfaces with exterior air. The aim is to dissipate heat by convection, radiation and conduction.
Heat transfer can be increased by adding fans mounted on the heatsink, thermal interfaces between the heatsink and the components, etc.
The profiles used for the heatsinks can be standard (see catalogue) or custom made. In all cases, machining and specific surface treatments are possible.
Custom heat sinks, Key points :
- Standard materials are aluminium or copper (for higher performances).
- Extrusion of standard or customised profiles or forging
- CNC machining for prototypes
- Surface treatment on request (Surtec 650, Anodising)
- Production on drawing for custom heat sinks
Large catalogue of standard heat sinks profiles available and customised profiles possible (dimensions, materials, assemblies, etc).
Prototypes and samples on request.
Description of custom heat sinks for thermal management
Heat sinks are mechanical parts with standard or specific profiles used to dissipate heat from electronic components of all sizes (PCBs, CPUs, GPUs).
They dissipate heat by conduction, radiation and convection.
About heat sinks :
Using a standard extrusion profile for your heat sink is a good alternative between custom-made and off-the-shelf heat sinks. The custom heat sink is extruded from the profile. We then machine the part again to adapt it to the drawing, add the holes, cut off the excess, etc. Once the heat sink has been machined, we can add a bath surface treatment (Surtec 650 or anodising).
Bear in mind that the Surtec 650 surface treatment protects the heatsink while maintaining electrical conductivity. Anodising is an electrical insulator.
We can supply your custom heat sinks raw or assembled with a suitable thermal interface. We can also supply these thermal interfaces separately. Using a thermal interface ensures complete mechanical contact between the heat sink and the component (by eliminating the air, which is a thermal insulator). For more information, see our article on choosing a thermal interface material.
If you can’t find the right profile for your application, we can produce tooling to drawing. We can also help you with the thermal simulation of your equipment and the definition of the appropriate heatsink profile.
Compelma supplies custom heat sinks from prototypes to series production.
For further information or advice, our team is available to answer your questions.
Catalogue of Standard Profiles for Custom Heat Sinks
Re-machining and surface treatment on request
Heatsink – Profile AD
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Width : 14 mm
Height : 10 mm
Nb fins : 4
Rth (°C/W) : 54,2
Length : 50 mm
Heatsink – Profile AE
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Width : 21,45 mm
Height : 19 mm
Nb fins : 4
Rth (°C/W) : 28,7
Length : 50 mm
Heatsink – Profile AT
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Width : 25 mm
Height : 19 mm
Nb fins : 4
Rth (°C/W) : 28,7
Length : 50 mm
Heatsink – Profile AO
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Width : 30 mm
Height : 22,3 mm
Nb fins : 10
Rth (°C/W) : 11,8
Length : 50 mm
Heatsink – Profile AR
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Width : 35 mm
Height : 14 mm
Nb fins : 11
Rth (°C/W) : 14,9
Length : 50 mm
Heatsink – Profile BF
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Width : 40 mm
Height : 19 mm
Nb fins : 12
Rth (°C/W) : 12,7
Length : 50 mm
Heatsink – Profile BE
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Width: 40 mm
Height : 7 mm
Nb d’ailettes : 10
Rth (°C/W) : 32,2
Length : 50 mm
Heatsink – Profile BG
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Width : 40 mm
Height : 25 mm
Nb fins : 11
Rth (°C/W) : 8,5
Length : 50 mm
Heatsink – Profile BR
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Width : 45 mm
Height : 20,8 mm
Nb fins : 12
Rth (°C/W) : 9,3
Length : 50 mm
Heatsink – Profile BX
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Width : 50 mm
Height : 46 mm
Nb fins : 11
Rth (°C/W) : 4,7
Length : 50 mm
Heatsink – Profile BY
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Width : 50 mm
Height : 7 mm
Nb fins : 9
Rth (°C/W) : 17
Length : 50 mm
Heatsink – Profile CJ
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Width : 50 mm
Height : 10 mm
Nb fins : 11
Rth (°C/W) : 16,8
Length : 50 mm
Heatsink – Profile CI
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Width : 54,1 mm
Height : 10 mm
Nb fins : 13
Rth (°C/W) : 16,8
Length : 50 mm
Heatsink – Profile DB
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Width : 60 mm
Height : 8 mm
Nb fins : 18
Rth (°C/W) : 17,8
Length : 50 mm
Heatsink – Profile DQ
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Width : 64,5 mm
Height : 9,5 mm
Nb fins : 9
Rth (°C/W) : 22
Length : 50 mm
Heatsink – Profile EA
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Width : 70 mm
Height : 10 mm
Nb fins : 16
Rth (°C/W) : 13,6
Length : 50 mm
Heatsink – Profile EO
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Width : 75 mm
Height : 60,7 mm
Nb fins : 13
Rth (°C/W) : 3,1
Length : 50 mm
Heatsink – Profile EP
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Width : 75 mm
Height : 14 mm
Nb fins : 15
Rth (°C/W) : 10,5
Length : 50 mm
Heatsink – Profile EY
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Width : 80 mm
Height : 15 mm
Nb fins : 13
Rth (°C/W) : 11,3
Length : 50 mm
Heatsink – Profile FU
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Width : 85mm
Height : 10,13 mm
Nb fins : 20
Rth (°C/W) : 10,9
Length : 50 mm
Heatsink – Profile GS
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Width : 100 mm
Height : 10 mm
Nb fins : 24
Rth (°C/W) : 9,6
Length : 50 mm
Heatsink – Profile GU
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Width : 100 mm
Height : 26 mm
Nb fins : 31
Rth (°C/W) : 3,1
Length : 50 mm
Heatsink – Profile HK
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Width : 105 mm
Height : 13,1 mm
Nb fins : 28
Rth (°C/W) : 8,6
Length : 50 mm
Heatsink – Profile HT
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Width : 110mm
Height : 5,9 mm
Nb fins : 36
Rth (°C/W) : 13,5
Length : 50 mm
Heatsink – Profile HV
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Width : 114 mm
Height : 33 mm
Nb fins : 15
Rth (°C/W) : 4,8
Length : 50 mm
Heatsink – Profile IG
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Width : 115,87 mm
Height : 19,05 mm
Nb fins : 19
Rth (°C/W) : 6,1
Length : 50 mm
Heatsink – Profile IK
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Width : 120 mm
Height : 62 mm
Nb fins : 28
Rth (°C/W) : 1,5
Length : 50 mm
Heatsink – Profile IS
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Width : 125 mm
Height : 42 mm
Nb fins : 29
Rth (°C/W) : 13,5
Length : 50 mm
Heatsink – Profile IT
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Width : 125 mm
Height : 42 mm
Nb fins : 29
Rth (°C/W) : 2
Length : 50 mm
Heatsink – Profile ID
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Width : 130 mm
Height : 25 mm
Nb fins : 19
Rth (°C/W) : 4,8
Length : 50 mm
Heatsink – Profile IU
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Width : 130 mm
Height : 20 mm
Nb fins : 18
Rth (°C/W) : 6,1
Length : 50 mm
Heatsink – Profile JA
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Width : 134 mm
Height : 29,2 mm
Nb fins : 10
Rth (°C/W) : 6,7
Length : 50 mm
Heatsink – Profile JD
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Width : 142,8 mm
Height : 10 mm
Nb fins : 14
Rth (°C/W) : 12,8
Length : 50 mm
Heatsink – Profile JF
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Width : 144,4 mm
Height : 16,5 mm
Nb fins : 12
Rth (°C/W) : 9,7
Length : 50 mm
Heatsink – Profile JK
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Width : 150 mm
Height : 5,9 mm
Nb fins : 50
Rth (°C/W) : 9,8
Length : 50 mm
Heatsink – Profile JM
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Width : 150 mm
Height : 25 mm
Nb fins : 24
Rth (°C/W) : 3,9
Length : 50 mm
Heatsink – Profile JT
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Width : 160 mm
Height : 19 mm
Nb fins : 14
Rth (°C/W) : 7,1
Length : 50 mm
Heatsink – Profile KJ
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Width : 171 mm
Height : 15,5 mm
Nb fins : 36
Rth (°C/W) : 4,4
Length : 50 mm
Heatsink – Profile KP
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Width : 180 mm
Height : 90,1 mm
Nb fins : 18
Rth (°C/W) : 1,5
Length : 50 mm
Heatsink – Profile KS
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Width : 186,44 mm
Height : 22,73 mm
Nb fins : 25
Rth (°C/W) : 4
Length : 50 mm
Heatsink – Profile KT
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Width : 190,5 mm
Height : 26,9 mm
Nb fins : 62
Rth (°C/W) : 1,4
Length : 50 mm
Heatsink – Profile KZ
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Width : 200 mm
Height : 15 mm
Nb fins : 43
Rth (°C/W) : 3,7
Length : 50 mm
Heatsink – Profile LD
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Width : 200 mm
Height : 73,4 mm
Nb fins : 13
Rth (°C/W) : 2,3
Length : 50 mm
Heatsink – Profile LE
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Width : 200 mm
Height : 83,5 mm
Nb fins : 41
Rth (°C/W) : 0,8
Length : 50 mm
Heatsink – Profile LB
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Width : 200 mm
Height : 45 mm
Nb fins : 30
Rth (°C/W) : 2,4
Length : 50 mm
Heatsink – Profile LI
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Width : 219 mm
Height : 15,5 mm
Nb fins : 20
Rth (°C/W) : 6,2
Length : 50 mm
Heatsink – Profile LT
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Width : 250 mm
Height : 28 mm
Nb fins : 28
Rth (°C/W) : 2,9
Length : 50 mm
Heatsink – Profile LU
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Width : 250 mm
Height : 84 mm
Nb fins : 20
Rth (°C/W) : 1,4
Length : 50 mm
Heatsink – Profile LV
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Width : 250 mm
Height : 60,5 mm
Nb fins : 56
Rth (°C/W) : 0,8
Length : 50 mm
Heatsink – Profile MB
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Width : 270 mm
Height : 74,5 mm
Nb fins : 32
Rth (°C/W) : 1
Length : 50 mm
Heatsink – Profile MC
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Width : 270 mm
Height : 131,5 mm
Nb fins : 20
Rth (°C/W) : 0,9
Length : 50 mm
Heatsink – Profile LX
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Width : 300 mm
Height : 41,5 mm
Nb fins : 32
Rth (°C/W) : 1,8
Length : 50 mm
Heatsink – Profile MG
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Width : 300 mm
Height : 84,2 mm
Nb fins : 23
Rth (°C/W) : 1,2
Length : 50 mm
Heatsink – Profile MJ
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Width : 360 mm
Height : 90,5 mm
Nb fins : 48
Rth (°C/W) : 0,6
Length : 50 mm