Heatsinks

Heat sinks are a type of thermal conductor (or heat exchanger) that absorb and dissipate the heat created by electronic and mechanical devices. Heat sinks use convection, conduction or radiation to disperse heat.


What are heat sinks made of?


Heat sinks are made from metal and typically constructed from copper or aluminium. Copper is an excellent thermal conductor, helping to draw heat away from the device that you are trying to cool. Although aluminium doesn’t conduct heat as well as copper, it is less expensive and lighter than copper. The heat will normally rise through a number of metal fins. Fin designs are used as they provide a greater surface area for the heat to spread across and dissipate.


What would you use a heat sink for?


Heat sinks prevent devices from overheating and are particularly important in protecting electronics such as CPUs. Components subject to too much heat can become irreparably damaged. In the most severe cases overheating components can result in fires, explosions and injury.


What devices can you use heat sinks for?


Heat sinks can be used to cool a large number of devices. For example, CPUs, LEDs, ICs and modules.


What is the difference between a heat sink and cooling fan?


Heat sinks are a piece of metal that conducts heat away from components. Fans forcibly move warm air away from components.


Terminology


A wide variety of heat sinks are available. Passive heat sinks refer to those without a fan, while the term ’active heat sinks’ refer to those with an integrated fan. You may also come across the term HSF which means a heat sink with a fan. Some heat sinks can also be combined with a liquid cooling solution to move heat away from devices. Heat sinks are also frequently spelt as ’heatsinks’.


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Omschrijving Prijs For Use With Length Width Height Dimensions Thermal Resistance Mounting Diameter Colour Application Finish Material Package Type Series
RS-stocknr. 168-8049
FabrikantnummerWA202B
FabrikantSchaffner
96,05 €
Each
Aantal stuks
Universal Rectangular Alu 1m 120mm 37mm 1000 x 120 x 37mm - - - - - - Aluminium - -
RS-stocknr. 177-1797
FabrikantnummerWA212-0
FabrikantSchaffner
108,37 €
Each
Aantal stuks
Universal Rectangular Alu 1m 150mm 27mm 1000 x 150 x 27mm - - - Black - - Aluminium - -
RS-stocknr. 177-1804
FabrikantnummerWA212-0B
FabrikantSchaffner
136,84 €
Each
Aantal stuks
Universal Rectangular Alu 1m 150mm 27mm 1000 x 150 x 27mm - - - - - - Aluminium - -
RS-stocknr. 218-2261
FabrikantnummerKL224-50.8SW
FabrikantSchaffner
3,31 €
Each
Aantal stuks
- 50.8mm 29mm 12mm 50.8 x 29 x 12mm 7.5K/W Clip - Black - - - - -
RS-stocknr. 218-2211
FabrikantnummerKL205-38.1SW
FabrikantSchaffner
2,89 €
Each
Aantal stuks
- 38.1mm 32mm 14mm 38.1 x 32 x 14mm 9K/W Clip - Black - - - - -
RS-stocknr. 360-8770
FabrikantnummerWA 628.002
FabrikantSchaffner
1,09 €
Each
Aantal stuks
- 13.21mm 19.05mm 19.05mm 13.21 x 9.53 x 19.05mm 30°C/W Clip - - - - - TO-220 -
RS-stocknr. 168-8055
FabrikantnummerWA203B
FabrikantSchaffner
28,69 €
Each
Aantal stuks
Universal Rectangular Alu 1m 32mm 20mm 1000 x 32 x 20mm - - - Silver - - Aluminium - -
RS-stocknr. 168-8077
FabrikantnummerWA210B
FabrikantSchaffner
222,09 €
Each
Aantal stuks
Universal Rectangular Alu 1m 200mm 40mm 1000 x 200 x 40mm - - - - - - Aluminium - -
RS-stocknr. 168-8099
FabrikantnummerWA408B
FabrikantSchaffner
65,10 €
Each
Aantal stuks
Universal Rectangular Alu 1m 88mm 35mm 1000 x 88 x 35mm - - - - - - Aluminium - -
RS-stocknr. 218-2277
FabrikantnummerKL194CLIP
FabrikantSchaffner
0,375 €
Each (In a Pack of 10)
Aantal stuks
Clip - - - - 48K/W - - - - - - - -
RS-stocknr. 218-2110
FabrikantnummerRAWA560-0B
FabrikantSchaffner
81,14 €
Each
Aantal stuks
Universal Rectangular Alu 1m 66mm 40mm 1000 x 66 x 40mm - - - - - - Aluminium - -
RS-stocknr. 409-9925
FabrikantnummerWA 217.0
FabrikantSchaffner
136,56 €
Each
Aantal stuks
Universal Rectangular Alu 1m 200mm 25mm 1000 x 200 x 25mm 0.55K/W - - Black - - Aluminium - -
RS-stocknr. 360-8758
FabrikantnummerWA 627.003
FabrikantSchaffner
1,73 €
Each
Aantal stuks
- 13.21mm 12.7mm 19.05mm 13.21 x 12.7 x 19.05mm 27°C/W Clip - - - - - TO-220 -
RS-stocknr. 168-8106
FabrikantnummerWA470B
FabrikantSchaffner
61,83 €
Each
Aantal stuks
Universal Rectangular Alu 1m 100mm 15mm 1000 x 100 x 15mm - - - - - - Aluminium - -
RS-stocknr. 218-2104
FabrikantnummerRAWA560-0
FabrikantSchaffner
112,91 €
Each
Aantal stuks
Universal Rectangular Alu 1m 66mm 40mm 1000 x 66 x 40mm - - - Black - - Aluminium - -
RS-stocknr. 360-8809
FabrikantnummerKL 112.25.A SW
FabrikantSchaffner
2,23 €
Each
Aantal stuks
- 25mm 11mm 16mm 25 x 11 x 16mm 18K/W Screw - Black - - - TO-220 -
RS-stocknr. 360-8786
FabrikantnummerWA 628.003
FabrikantSchaffner
0,62 €
Each
Aantal stuks
- 13.21mm 12.7mm 19.05mm 13.21 x 12.7 x 19.05mm 27°C/W Clip - - - - - TO-220 -
RS-stocknr. 360-8764
FabrikantnummerWA 628.001
FabrikantSchaffner
0,98 €
Each
Aantal stuks
- 13.21mm 19.05mm 19.05mm 13.21 x 6.35 x 19.05mm 35°C/W Clip - - - - - TO-220 -
RS-stocknr. 360-8821
FabrikantnummerKL 112.25.C SW
FabrikantSchaffner
1,78 €
Each
Aantal stuks
- 25mm 11mm 16mm 25 x 11 x 16mm 18K/W Screw - Black - - - TO-220 -
RS-stocknr. 409-9931
FabrikantnummerWA 217.0B
FabrikantSchaffner
116,98 €
Each
Aantal stuks
Universal Rectangular Alu 1m 200mm 25mm 1000 x 200 x 25mm 0.55K/W - - - - - Aluminium - -