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. 189-8634
FabrikantnummerSK44-100-SA
13,72 €
Each
Aantal stuks
Universal 19" Alu 100mm 159mm 15mm 100 x 159 x 15mm 1.8K/W Clamp - Black - - - - -
RS-stocknr. 674-4721
FabrikantnummerSK508-100SA
13,41 €
Each
Aantal stuks
Universal Square Alu 100mm 100mm 25mm 100 x 100 x 25mm 2K/W - - Black - - Aluminium - -
RS-stocknr. 903-3147
Fabrikantnummer180AB1500B
FabrikantABL Components
86,86 €
Each
Aantal stuks
Universal Rectangular Alu 150mm 215mm 77mm 150 x 215 x 77mm 0.1°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS-stocknr. 712-4257
FabrikantnummerML7G
FabrikantAAVID THERMALLOY
0,48 €
Each (In a Pack of 5)
Aantal stuks
- 19mm 20mm 8.8mm 19 x 20 x 8.8mm 24°C/W Screw - Black - - - TO-220 -
RS-stocknr. 158-540
FabrikantnummerTDEX3132/100/FMF12G
69,08 €
Each
Aantal stuks
Universal Rectangular Alu 100mm 101.6mm 77mm 100 x 101.6 x 77mm 0.16K/W - - Black - - Aluminium - -
RS-stocknr. 168-6245
FabrikantnummerKL167SW
FabrikantSeifert
2,17 €
Each
Aantal stuks
- 30mm 25.4mm 12.7mm 30 x 25.4 x 12.7mm 15K/W Solder - Black - - - TO-220 -
RS-stocknr. 169-9803
FabrikantnummerWA201 5
FabrikantSeifert
9,02 €
Each
Aantal stuks
- 75mm 100mm 28mm 75 x 100 x 28mm 2.5K/W - - Black - - - - -
RS-stocknr. 789-8592
FabrikantnummerPPN0750B
FabrikantABL Components
6,12 €
Each
Aantal stuks
- 75mm 50mm 28mm 75 x 50 x 28mm 3.7°C/W Screw - Black - - - TO-220 -
RS-stocknr. 789-8576
Fabrikantnummer350AB2000B
FabrikantABL Components
35,40 €
Each
Aantal stuks
Universal Rectangular Alu 200mm 125mm 50mm 200 x 125 x 50mm 0.59°C/W - - Black - - Aluminium - -
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 - -
RS-stocknr. 189-8202
FabrikantnummerSK88-100-SA
12,58 €
Each
Aantal stuks
- 100mm 100mm 50mm 100 x 100 x 50mm 0.85K/W - - Black - - - TO-3 -
RS-stocknr. 189-8640
FabrikantnummerSK44-150-SA
19,53 €
Each
Aantal stuks
Universal 19" Alu 150mm 159mm 15mm 150 x 159 x 15mm 1.4K/W Clamp - 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. 722-6870
FabrikantnummerSK 480/37,5 SA
1,78 €
Each
Aantal stuks
- 37.5mm 28mm 10.3mm 37.5 x 28 x 10.3mm 11K/W Clip - Black - - - - -
RS-stocknr. 504-0687
FabrikantnummerFK224MI220-1
1,044 €
Each (In a Pack of 10)
Aantal stuks
- 25mm 25.4mm 8.3mm 25 x 25.4 x 8.3mm 18K/W Clip, Solder - Black - - - TO-220 -
RS-stocknr. 189-8959
FabrikantnummerLAICK17X17W
56,84 €
Each
Aantal stuks
Universal Square Alu with fan 43.1mm 43.1mm 20mm 43.1 x 43.1 x 20mm 1.6K/W Conductive Adhesive - Black - - Aluminium - -
RS-stocknr. 722-6868
FabrikantnummerSK 575/84 SA
4,67 €
Each
Aantal stuks
- 84mm 6mm 50mm 84 x 6 x 50mm 5K/W Clip - Black - - - - -
RS-stocknr. 722-6883
FabrikantnummerSK 480/84 SA
3,53 €
Each
Aantal stuks
- 84mm 28mm 10.3mm 84 x 28 x 10.3mm 8K/W Clip - Black - - - - -
RS-stocknr. 903-3157
Fabrikantnummer113AB2000B
FabrikantABL Components
32,17 €
Each
Aantal stuks
Universal Rectangular Alu 200mm 150mm 25mm 200 x 150 x 25mm 0.31°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS-stocknr. 189-8246
FabrikantnummerSK88-75-SA
10,67 €
Each
Aantal stuks
- 75mm 100mm 50mm 75 x 100 x 50mm 1.1K/W - - Black - - - TO-3 -