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. 722-6818
FabrikantnummerSK 570/50 SA
14,93 €
Each
Aantal stuks
Universal Round Alu - - 50mm 70 (Dia.) x 50mm 1.3K/W Screw 70mm Black - - - LED -
RS-stocknr. 189-8612
FabrikantnummerSK42-200-SA
27,91 €
Each
Aantal stuks
Universal Rectangular Alu 200mm 200mm 25mm 200 x 200 x 25mm 1.65 → 0.7K/W - - Black - - Aluminium - -
RS-stocknr. 189-8606
FabrikantnummerSK42-150-SA
26,04 €
Each
Aantal stuks
Universal Rectangular Alu 150mm 200mm 25mm 150 x 200 x 25mm 0.7K/W - - Black - - Aluminium - -
RS-stocknr. 169-4252
FabrikantnummerSK92 150SA
23,08 €
Each
Aantal stuks
Universal Rectangular Alu 150mm 100mm 40mm 150 x 100 x 40mm 1K/W - - Black - - Aluminium - -
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. 780-5919
FabrikantnummerILA-HSINK-STAR-50X40MM-BLK-K
17,03 €
Each
Aantal stuks
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 40mm 50 (Dia.) x 40mm - Screw 50mm Black - - - LED -
RS-stocknr. 189-8842
FabrikantnummerSK04-37,5-SA
3,56 €
Each
Aantal stuks
- 37.5mm 97mm 25mm 37.5 x 97 x 25mm 2.7K/W - - Black - - - - -
RS-stocknr. 774-2821
FabrikantnummerLAM 5 100 24
67,27 €
Each
Aantal stuks
Universal Rectangular Alu with fan 100mm 50mm 50mm 100 x 50 x 50mm 0.4K/W PCB Mount - Natural - - Aluminium - -
RS-stocknr. 692-0638
FabrikantnummerLA 9 150 230 V
164,02 €
Each
Aantal stuks
Universal Rectangular Alu with fan 150mm 80mm 83mm 150 x 80 x 83mm 0.25K/W - - - - - Aluminium - -
RS-stocknr. 880-5881
Fabrikantnummer416101U00000G
FabrikantAAVID THERMALLOY
128,051 €
Each (In a Pack of 10)
Aantal stuks
Universal rectangular Liquid 152.4mm 177.8mm 15.24mm 152 x 177 x 14mm - Surface Mount - - Power Applications - Aluminium - 4161
RS-stocknr. 189-8599
FabrikantnummerSK42-100-SA
19,07 €
Each
Aantal stuks
Universal Rectangular Alu 100mm 200mm 25mm 100 x 200 x 25mm 0.95K/W - - Black - - Aluminium - -
RS-stocknr. 168-8049
FabrikantnummerWA202B
FabrikantSchaffner
94,63 €
Each
Aantal stuks
Universal Rectangular Alu 1m 120mm 37mm 1000 x 120 x 37mm - - - - - - Aluminium - -
RS-stocknr. 263-251
FabrikantRS PRO
1,22 €
Each (In a Pack of 10)
Aantal stuks
- 20mm 35mm 20mm 20 x 35 x 20mm 17.9°C/W - - - - - Aluminium TO-220 -
RS-stocknr. 712-4260
FabrikantnummerML26AAG
FabrikantAAVID THERMALLOY
0,554 €
Each (In a Pack of 5)
Aantal stuks
- 25mm 15mm 20mm 25 x 15 x 20mm 17.9°C/W PCB Through Hole - Black - - - TO-220 -
RS-stocknr. 189-8870
FabrikantnummerSK08-100-SA
8,70 €
Each
Aantal stuks
- 100mm 88mm 35mm 100 x 88 x 35mm 1.5K/W - - Black - - - - -
RS-stocknr. 903-3080
Fabrikantnummer109AB1500B
FabrikantABL Components
13,12 €
Each
Aantal stuks
Universal Rectangular Alu 150mm 100mm 15mm 150 x 100 x 15mm 0.6°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS-stocknr. 722-6864
FabrikantnummerSK 575/50 SA
3,16 €
Each
Aantal stuks
- 50mm 6mm 50mm 50 x 6 x 50mm 6.8K/W Clip - Black - - - - -
RS-stocknr. 189-8280
FabrikantnummerSK92-50-SA
10,05 €
Each
Aantal stuks
Universal Rectangular Alu 50mm 100mm 40mm 50 x 100 x 40mm 1.75K/W - - Black - - Aluminium - -
RS-stocknr. 189-8230
FabrikantnummerSK88-50-SA
7,33 €
Each
Aantal stuks
- 50mm 100mm 50mm 50 x 100 x 50mm 1.4K/W - - Black - - - TO-3 -
RS-stocknr. 189-8583
FabrikantnummerSK13-35-SA-22
1,14 €
Each
Aantal stuks
- 35mm 17mm 13mm 35 x 17 x 13mm 17K/W Clip, Screw - Black - - - TO-220 -