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. 234-2463
Fabrikantnummer159AB2000B
FabrikantABL Components
€ 48,54
Each
Aantal stuks
Universal Rectangular Alu 200mm 160mm 40mm 200 x 160 x 40mm 0.55K/W - - Black - - Aluminium - -
RS-stocknr. 189-8117
FabrikantnummerSK104-50,8-STS-220
€ 2,42
Each
Aantal stuks
- 50.8mm 34.9mm 12.7mm 50.8 x 34.9 x 12.7mm 9K/W Clip - Black - - - TO-220 -
RS-stocknr. 698-8098
FabrikantnummerICK BGA 14x14
€ 1,85
Each
Aantal stuks
Universal Square Alu 14mm 14mm 6mm 14 x 14 x 6mm 29K/W Adhesive Foil, Conductive Foil - Black - - Aluminium BGA -
RS-stocknr. 189-8612
FabrikantnummerSK42-200-SA
€ 28,47
Each
Aantal stuks
Universal Rectangular Alu 200mm 200mm 25mm 200 x 200 x 25mm 1.65 → 0.7K/W - - Black - - Aluminium - -
RS-stocknr. 698-8111
FabrikantnummerFK 244 13 D2 PAK
€ 1,45
Each (In a Pack of 5)
Aantal stuks
- 26mm 13mm 10mm 26 x 13 x 10mm 22.8K/W Solder - Silver - - - - -
RS-stocknr. 169-4252
FabrikantnummerSK92 150SA
€ 23,54
Each
Aantal stuks
Universal Rectangular Alu 150mm 100mm 40mm 150 x 100 x 40mm 1K/W - - Black - - Aluminium - -
RS-stocknr. 189-8628
FabrikantnummerSK42-75-SA
€ 16,46
Each
Aantal stuks
Universal Rectangular Alu 75mm 200mm 25mm 75 x 200 x 25mm 1.4K/W - - Black - - Aluminium - -
RS-stocknr. 189-9132
FabrikantnummerFK231SA220
€ 1,02
Each
Aantal stuks
- 19mm 13.5mm 9.5mm 19 x 13.5 x 9.5mm 24K/W Screw - Black - - - TO-220 -
RS-stocknr. 189-8606
FabrikantnummerSK42-150-SA
€ 26,56
Each
Aantal stuks
Universal Rectangular Alu 150mm 200mm 25mm 150 x 200 x 25mm 0.7K/W - - Black - - Aluminium - -
RS-stocknr. 674-4728
FabrikantnummerSK470-100SA
€ 2,18
Each
Aantal stuks
- 100mm 11.8mm 8mm 100 x 11.8 x 8mm 18.5K/W - - Black - - - - -
RS-stocknr. 255-8539
FabrikantnummerSK434/75SA
€ 6,90
Each
Aantal stuks
- 75mm 50mm 40mm 75 x 50 x 40mm 2.4K/W - - Black - - - - -
RS-stocknr. 712-4235
Fabrikantnummer7106DG/TR
FabrikantAAVID THERMALLOY
€ 1,272
Each (In a Pack of 5)
Aantal stuks
- 14.99mm 25.91mm 9.52mm 14.99 x 25.91 x 9.52mm 15K/W PCB Surface Mount - - - - - - -
RS-stocknr. 722-6915
FabrikantnummerSK 487/37,5 SA
€ 3,60
Each
Aantal stuks
- 37.5mm 52.3mm 28mm 37.5 x 52.3 x 28mm 5K/W Clip - Black - - - - -
RS-stocknr. 126-3113
FabrikantnummerFIT0504
FabrikantDFRobot
€ 10,71
Each
Aantal stuks
LattePanda 34.5mm 34.5mm 10mm 34.5 x 34.5 x 10mm - PCB Surface Mount, Screw - Blue - - Aluminium - -
RS-stocknr. 780-5893
FabrikantnummerILA-HSINK-STAR-50X20MM-BLK-K
€ 13,50
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. 189-8274
FabrikantnummerSK92-100-SA
€ 18,58
Each
Aantal stuks
Universal Square Alu 100mm 100mm 40mm 100 x 100 x 40mm 1K/W - - Black - - Aluminium - -
RS-stocknr. 712-4172
Fabrikantnummer241804B91200G
FabrikantAAVID THERMALLOY
€ 2,75
Each
Aantal stuks
1/8 Brick DC/DC Converter 57.9mm 22.9mm 11.4mm 57.9 x 22.9 x 11.4mm - Screw - - - - - - -
RS-stocknr. 189-8145
FabrikantnummerSK129-38,1-STS-220
€ 3,19
Each
Aantal stuks
- 38.1mm 42mm 25mm 38.1 x 42 x 25mm 5K/W Clip - Black - - - - -
RS-stocknr. 189-8511
FabrikantnummerSK68-50-SA
€ 3,92
Each
Aantal stuks
- 50mm 46mm 33mm 50 x 46 x 33mm 4.8K/W Screw - Black - - - TO-220 -
RS-stocknr. 189-8094
FabrikantnummerSK104-25,4-STS-22
€ 2,13
Each
Aantal stuks
- 25.4mm 34.9mm 12.7mm 25.4 x 34.9 x 12.7mm 14K/W Clip - Black - - - TO-220 -