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’.


...
Read more Read less

Filters

Viewing 41 - 60 of 779 products
Results per page
Description Price For Use With Length Width Height Dimensions Thermal Resistance Mounting Diameter Colour Application Finish Material Package Type Series
RS Stock No. 722-6791
Mfr. Part No.SK 578/20 SA
MYR30.42
Each
units
Universal Round Alu - - 20mm 60 (Dia.) x 20mm 2.4K/W Screw 60mm Black - - - LED -
RS Stock No. 893-5471
Mfr. Part No.DV-T263-201E
BrandOhmite
MYR8.881
Each (In a Pack of 100)
units
- 25.9mm 12.7mm 12.1mm 25.9 x 12.7 x 12.1mm - Roller Mount - - - - Aluminium - D
RS Stock No. 189-8202
Mfr. Part No.SK88-100-SA
MYR68.55
Each
units
- 100mm 100mm 50mm 100 x 100 x 50mm 0.85K/W - - Black - - - TO-3 -
RS Stock No. 750-0875
Mfr. Part No.BGA PP 035
MYR14.93
Each
units
- 49mm 49mm 20mm 49 x 49 x 20mm 7K/W Adhesive Foil - Black - - - BGA -
RS Stock No. 674-4765
Mfr. Part No.ICK BGA 35x35x10
MYR9.44
Each
units
Universal Square Alu 35mm 35mm 10mm 35 x 35 x 10mm 15.7K/W Adhesive Foil, Conductive Foil - Black - - - BGA -
RS Stock No. 698-8111
Mfr. Part No.FK 244 13 D2 PAK
MYR5.24
Each (In a Pack of 5)
units
- 26mm 13mm 10mm 26 x 13 x 10mm 22.8K/W Solder - Silver - - - - -
RS Stock No. 867-0890
Mfr. Part No.SF-03-100-S
BrandSPREADFAST
MYR37.95
Each
units
Heat Pipe 100mm - - 3 x 100mm - - 3mm - - - Copper - SF
RS Stock No. 389-3451
Mfr. Part No.FHP08
MYR60.53
Each
units
- 61.8mm 50mm 32mm 61.8 x 50 x 32mm - - - - - - - - -
RS Stock No. 864-4046
Mfr. Part No.WA614-002
BrandSchaffner
MYR6.228
Each (In a Pack of 5)
units
- 28mm 25mm 9.5mm - - Vertical - - - Black Anodized - TO-220 WA614
RS Stock No. 189-8606
Mfr. Part No.SK42-150-SA
MYR79.39
Each
units
Universal Rectangular Alu 150mm 200mm 25mm 150 x 200 x 25mm 0.7K/W - - Black - - Aluminium - -
RS Stock No. 698-8117
Mfr. Part No.FK 244 13 D PAK
MYR3.31
Each (In a Pack of 5)
units
- 23mm 13mm 10mm 23 x 13 x 10mm 25K/W Solder - Silver - - - - -
RS Stock No. 750-0888
Mfr. Part No.BGA STD 010
MYR45.80
1 Bag of 5
Bag(s)
BGA 13mm 13.5mm 10mm 13 x 13.5 x 10mm 27K/W Adhesive Foil - Black - - - BGA -
RS Stock No. 692-0672
Mfr. Part No.LA 7 100 12 V
MYR535.00
Each
units
- 100mm 125mm 74mm 100 x 125 x 74mm 0.12K/W - - - - - - - -
RS Stock No. 698-8127
Mfr. Part No.FK 250 08 LF PAK
MYR4.398
Each (In a Pack of 5)
units
- 15mm 8mm 8mm 15 x 8 x 8mm 34.8K/W Solder - Silver - - - - -
RS Stock No. 789-8602
Mfr. Part No.PPN1000B
MYR28.07
Each
units
- 100mm 50mm 28mm 100 x 50 x 28mm 3.1°C/W Screw - Black - - - TO-220 -
RS Stock No. 221-2154
Mfr. Part No.SK75-37,5TO220
MYR9.27
Each
units
- 37.5mm 32mm 14mm 37.5 x 32 x 14mm 10K/W Screw - Black - - - TO-220 -
RS Stock No. 123-5616
Mfr. Part No.SF-CHS-121210P
BrandSPREADFAST
MYR3.21
Each (In a Pack of 5)
units
Universal Square Ceramic 43mm 43mm 6mm 12 x 12 x 10mm 7.5 °C/W @ 400 lfm, 12.2 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Pin Fin
RS Stock No. 263-251
BrandRS PRO
MYR6.336
Each (In a Pack of 10)
units
TO-220 20mm 35mm 20mm 20 x 35 x 20mm 17.9°C/W - - - - - Aluminium TO-220 -
RS Stock No. 189-9047
Mfr. Part No.ICK40B
MYR5.50
Each
units
Universal Rectangular Alu 51mm 19mm 4.8mm 51 x 19 x 4.8mm 8.5K/W - - Black - - - DIL-IC -
RS Stock No. 722-6896
Mfr. Part No.SK 574/25 SA
MYR11.73
Each
units
- 25mm 32.3mm 28mm 25 x 32.3 x 28mm 7.5K/W Clip - Black - - - - -