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. 912-5004
FabrikantnummerILA-HSNK-190x90x50mm-BLK
53,33 €
Each
Aantal stuks
- 190mm 90mm 50mm 190 x 90 x 50mm - - - - - - - LED Array -
RS-stocknr. 402-995
Fabrikantnummer436402
FabrikantAAVID THERMALLOY
2,011 €
Each (In a Pack of 10)
Aantal stuks
- 32mm 32mm 16mm 60 x 32 x 16mm 6.8°C/W Screw - Black - - - TO-220 -
RS-stocknr. 189-8561
FabrikantnummerSK08-75-SA
7,00 €
Each
Aantal stuks
- 75mm 88mm 35mm 75 x 88 x 35mm 1.9K/W - - Black - - - - -
RS-stocknr. 780-5893
FabrikantnummerILA-HSINK-STAR-50X20MM-BLK-K
12,98 €
Each
Aantal stuks
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 20mm 50 (Dia.) x 20mm - Screw 50mm Black - - - LED -
RS-stocknr. 750-0932
FabrikantnummerBGA STD 090
FabrikantABL Components
1,866 €
Each (In a Bag of 5)
Aantal stuks
- 23.9mm 40mm 10mm 23.9 x 40 x 10mm 10K/W Adhesive Foil - Black - - - BGA -
RS-stocknr. 189-8094
FabrikantnummerSK104-25,4-STS-22
2,09 €
Each
Aantal stuks
- 25.4mm 34.9mm 12.7mm 25.4 x 34.9 x 12.7mm 14K/W Clip - Black - - - TO-220 -
RS-stocknr. 177-1797
FabrikantnummerWA212-0
FabrikantSchaffner
103,33 €
Each
Aantal stuks
Universal Rectangular Alu 1m 150mm 27mm 1000 x 150 x 27mm - - - Black - - Aluminium - -
RS-stocknr. 504-0744
FabrikantnummerICKSMDF10
0,839 €
Each (In a Pack of 10)
Aantal stuks
Universal Rectangular Alu 10mm 8mm 6mm 10 x 8 x 6mm 71K/W - - Black - - Aluminium DIL-IC -
RS-stocknr. 507-5194
FabrikantnummerS561/B/100
FabrikantAAVID THERMALLOY
16,02 €
Each
Aantal stuks
Universal Rectangular Alu 100mm 120mm 37mm 100 x 120 x 37mm 1.1K/W - - Black - - Aluminium - -
RS-stocknr. 401-964
Fabrikantnummer400051
FabrikantAAVID THERMALLOY
2,112 €
Each (In a Pack of 20)
Aantal stuks
- 38mm 28mm 22mm 38 x 28 x 22mm 9.9°C/W Screw - Black - - - TO-220 -
RS-stocknr. 903-3153
Fabrikantnummer113AB1500B
FabrikantABL Components
25,13 €
Each
Aantal stuks
Universal Square Alu 150mm 150mm 25mm 150 x 150 x 25mm 0.39°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS-stocknr. 177-1804
FabrikantnummerWA212-0B
FabrikantSchaffner
122,31 €
Each
Aantal stuks
Universal Rectangular Alu 1m 150mm 27mm 1000 x 150 x 27mm - - - - - - Aluminium - -
RS-stocknr. 259-8739
FabrikantnummerSK89-75KLSSR1
24,79 €
Each
Aantal stuks
- 75mm 80mm 78.6mm 75 x 80 x 78.6mm 1.3K/W DIN Rail - Black - Anodized Stainless Steel - -
RS-stocknr. 189-8404
FabrikantnummerSK56-200-SA
90,00 €
Each
Aantal stuks
Universal Rectangular Alu 200mm 300mm 40mm 200 x 300 x 40mm 0.3K/W - - Black - - Aluminium - -
RS-stocknr. 774-2827
FabrikantnummerLAM 5 100 12
52,45 €
Each
Aantal stuks
Universal Rectangular Alu with fan 100mm 50mm 50mm 100 x 50 x 50mm 0.68K/W PCB Mount - Natural - - Aluminium - -
RS-stocknr. 722-6874
FabrikantnummerSK 480/50 SA
2,17 €
Each
Aantal stuks
- 50mm 28mm 10.3mm 50 x 28 x 10.3mm 10K/W Clip - Black - - - - -
RS-stocknr. 722-6814
FabrikantnummerSK 570/25 SA
7,97 €
Each
Aantal stuks
Universal Round Alu - - 25mm 70 (Dia.) x 25mm 2.6K/W Screw 70mm Black - - - LED -
RS-stocknr. 674-4838
FabrikantnummerICK S 50x50x25
11,63 €
Each
Aantal stuks
Universal Square Alu 50mm 50mm 25mm 50 x 50 x 25mm 2.4K/W Adhesive Foil, Conductive Foil - - - - Aluminium - -
RS-stocknr. 698-8117
FabrikantnummerFK 244 13 D PAK
1,414 €
Each (In a Pack of 5)
Aantal stuks
- 23mm 13mm 10mm 23 x 13 x 10mm 25K/W Solder - Silver - - - - -
RS-stocknr. 490-7090
FabrikantnummerMD/B/100
FabrikantAAVID THERMALLOY
18,41 €
Each
Aantal stuks
Universal Rectangular Alu 100mm 120mm 37mm 100 x 120 x 37mm 1.17K/W - - Black - - Aluminium - -