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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Description Price For Use With Length Width Height Dimensions Thermal Resistance Mounting Diameter Colour Application Finish Material Package Type Series
RS Stock No. 880-1943
Mfr. Part No.ILA-EXTRUSION-01-0150.
kr 26,368
Each (In a Pack of 5)
Units
Duris P5 150mm 24mm 18.9mm - - - - - - - - LED -
RS Stock No. 698-8111
Mfr. Part No.FK 244 13 D2 PAK
kr 15,752
Each (In a Pack of 5)
Units
- 26mm 13mm 10mm 26 x 13 x 10mm 22.8K/W Solder - Silver - - - - -
RS Stock No. 410-0003
Mfr. Part No.WA 412.0B
BrandSchaffner
kr 363,65
Each
Units
Universal Rectangular Alu 1m 29mm 11.5mm 1000 x 29 x 11.5mm 5.4K/W - - - - - Aluminium - -
RS Stock No. 780-5896
Mfr. Part No.ILA-HSINK-250X200X15MM-BLK-K
kr 1 405,41
Each
Units
Oslon 17 250mm 200mm 15mm 250 x 15 x 200mm - Screw - Black - - - LED -
RS Stock No. 189-8690
Mfr. Part No.SK47-150-SA
kr 476,17
Each
Units
Universal Rectangular Alu 150mm 200mm 40mm 150 x 200 x 40mm 0.53K/W - - Black - - Aluminium - -
RS Stock No. 706-6420
Mfr. Part No.TEP-HS1
BrandTRACOPOWER
kr 369,30
Each
Units
TEP-75WI 61mm 57.9mm 11.4mm 61 x 57.9 x 11.4mm - Screw - - - - - - -
RS Stock No. 137-4706
Mfr. Part No.2813040
BrandOKW
kr 21,21
Each
Units
- - - - - - - - - - - - - -
RS Stock No. 674-4756
Mfr. Part No.ICK BGA 14x14x10
kr 16,63
Each
Units
Universal Square Alu 14mm 14mm 10mm 14 x 14 x 10mm 27.4K/W Adhesive Foil, Conductive Foil - Black - - Aluminium BGA -
RS Stock No. 189-8713
Mfr. Part No.SK53-100-SA
kr 152,53
Each
Units
- 100mm 180mm 48mm 100 x 180 x 48mm 0.6K/W - - Black - - - - -
RS Stock No. 492-137
Mfr. Part No.00C855902B
kr 79,37
Each
Units
Universal Square Alu 60.1mm 53mm 35.1mm 60.1 x 53 x 35.1mm 6.5K/W Solder - - - - Aluminium BGA -
RS Stock No. 504-0716
Mfr. Part No.ICKSMDA10
kr 5,012
Each (In a Pack of 10)
Units
Universal Rectangular Alu 10mm 6.3mm 4.8mm 10 x 6.3 x 4.8mm 75K/W Conductive Adhesive, Conductive Foil - Black - - Aluminium DIL-IC -
RS Stock No. 189-8612
Mfr. Part No.SK42-200-SA
kr 309,51
Each
Units
Universal Rectangular Alu 200mm 200mm 25mm 200 x 200 x 25mm 1.65 → 0.7K/W - - Black - - Aluminium - -
RS Stock No. 722-6874
Mfr. Part No.SK 480/50 SA
kr 23,59
Each
Units
- 50mm 28mm 10.3mm 50 x 28 x 10.3mm 10K/W Clip - Black - - - - -
RS Stock No. 189-8151
Mfr. Part No.SK129-50,8-STS-220
kr 39,14
Each
Units
- 50.8mm 42mm 25mm 50.8 x 42 x 25mm 4K/W Clip - Black - - - - -
RS Stock No. 780-5962
Mfr. Part No.ILA-HSINK-78X46X25MM-BLK-K
kr 188,84
Each
Units
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 16, Oslon 4, Oslon 9, Stanley 1, Stanley 4 78mm 46mm 25mm 78 x 46 x 25mm - Screw - Black - - - LED -
RS Stock No. 191-0374
Mfr. Part No.UK14-25-SA-220
kr 9,13
Each
Units
- 25mm 14mm 15mm 25 x 14 x 15mm 20K/W Clip, Screw - Black - - - TO-220 -
RS Stock No. 189-8117
Mfr. Part No.SK104-50,8-STS-220
kr 26,31
Each
Units
- 50.8mm 34.9mm 12.7mm 50.8 x 34.9 x 12.7mm 9K/W Clip - Black - - - TO-220 -
RS Stock No. 674-4740
Mfr. Part No.ICK PGA 6x6x14
kr 16,09
Each
Units
Universal Square Alu 14mm 14mm 14mm 14 x 14 x 14mm 18.6K/W Adhesive Foil, Conductive Foil - Black - - Aluminium PGA -
RS Stock No. 712-4273
Mfr. Part No.BW50-2G
kr 41,23
Each (In a Pack of 5)
Units
- 25.4mm 34.9mm 50mm 25.4 x 34.9 x 50mm 5.8K/W PCB Through Hole - Black - - - TO-218, TO-220, TO-247 -
RS Stock No. 189-8684
Mfr. Part No.SK47-100-SA
kr 355,82
Each
Units
Universal Rectangular Alu 100mm 200mm 40mm 100 x 200 x 40mm 0.7K/W - - Black - - Aluminium - -