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. 189-8476
FabrikantnummerSK64-75-SA-2M3
7,85 €
Each
Aantal stuks
- 75mm 70mm 25mm 75 x 70 x 25mm 2.7K/W Screw - Black - - - - -
RS-stocknr. 780-5928
FabrikantnummerILA-HSINK-STAR-50X60MM-BLK-K
21,24 €
Each
Aantal stuks
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 60mm 50 (Dia.) x 60mm - Screw 50mm Black - - - LED -
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. 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. 658-025
Fabrikantnummer173AB2500B
FabrikantABL Components
70,89 €
Each
Aantal stuks
Universal Rectangular Alu 250mm 119mm 63mm 250 x 119 x 63mm 0.5K/W - - Black - - Aluminium - -
RS-stocknr. 920-9436
FabrikantnummerILA-HSINK-RADL-55X20MM-BLK
18,71 €
Each
Aantal stuks
SCOB - - 20mm 55 (Dia.) x 20mm - - 55mm - - - - LED -
RS-stocknr. 674-4769
FabrikantnummerICK BGA 40x40x10
2,59 €
Each
Aantal stuks
Universal Square Alu 40mm 40mm 10mm 40 x 40 x 10mm 13.8K/W Adhesive Foil, Conductive Foil - Black - - Aluminium BGA -
RS-stocknr. 268-105
Fabrikantnummer400020
FabrikantAAVID THERMALLOY
1,134 €
Each (In a Pack of 5)
Aantal stuks
- 19mm 22mm 19mm 11 x 22 x 19mm 23°C/W PCB Through Hole - - - - - TO-220 -
RS-stocknr. 492-131
Fabrikantnummer00C863501A
3,16 €
Each
Aantal stuks
Universal Square Alu 80mm 58.6mm 36mm 80 x 58.6 x 36mm 4K/W Screw - - - - Aluminium BGA -
RS-stocknr. 780-5906
FabrikantnummerILA-HSINK-STAR-50X20MM-RED-K
12,54 €
Each
Aantal stuks
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 20mm 50 (Dia.) x 20mm - Screw 50mm Red - - - LED -
RS-stocknr. 189-8050
FabrikantnummerSK100-100-SA
11,81 €
Each
Aantal stuks
Universal Rectangular Alu 100mm 66mm 40mm 100 x 66 x 40mm 1.5K/W - - Black - - Aluminium - -
RS-stocknr. 189-8432
FabrikantnummerSK58-50-SA
11,35 €
Each
Aantal stuks
Universal Rectangular Alu 50mm 150mm 27mm 50 x 150 x 27mm 1.7K/W - - Black - - Aluminium - -
RS-stocknr. 774-2815
FabrikantnummerLAM 5 75 24
63,88 €
Each
Aantal stuks
Universal Rectangular Alu with fan 75mm 50mm 50mm 75 x 50 x 50mm 0.5K/W PCB Mount - Natural - - Aluminium - -
RS-stocknr. 169-9825
FabrikantnummerWA116 6
FabrikantSeifert
2,62 €
Each
Aantal stuks
- 37.5mm 34.2mm 15mm 37.5 x 36 x 15mm 6K/W - - Black - - - - -
RS-stocknr. 698-8127
FabrikantnummerFK 250 08 LF PAK
0,80 €
Each (In a Pack of 5)
Aantal stuks
- 15mm 8mm 8mm 15 x 8 x 8mm 34.8K/W Solder - Silver - - - - -
RS-stocknr. 903-3150
Fabrikantnummer113AB1000B
FabrikantABL Components
18,41 €
Each
Aantal stuks
Universal Rectangular Alu 100mm 150mm 25mm 100 x 150 x 25mm 0.54°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS-stocknr. 189-9097
FabrikantnummerFK237SA220O
1,71 €
Each
Aantal stuks
- 19.05mm 14.5mm 12.7mm 19.05 x 14.5 x 12.7mm 21K/W Clip - Black - - - TO-220 -
RS-stocknr. 903-3166
Fabrikantnummer153AB1000B
FabrikantABL Components
12,31 €
Each
Aantal stuks
Universal Rectangular Alu 100mm 66mm 40mm 100 x 66 x 40mm 0.69°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS-stocknr. 722-6928
FabrikantnummerSK 487/84 SA
6,36 €
Each
Aantal stuks
- 84mm 52.3mm 28mm 84 x 52.3 x 28mm 2.5K/W Clip - Black - - - - -
RS-stocknr. 674-4715
FabrikantnummerSK454 -50SA
1,58 €
Each
Aantal stuks
- 50mm 21.45mm 19mm 50 x 21.45 x 19mm 8.5K/W - - Black - - - - -