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. 867-0947
Mfr. Part No.SF-08-200-S
BrandSPREADFAST
SGD16.89
Each
units
Heat Pipe 200mm - - 8 x 200mm - - 8mm - - - Copper - SF
RS Stock No. 867-0935
Mfr. Part No.SF-06-300-S
BrandSPREADFAST
SGD13.23
Each
units
Heat Pipe 300mm - - 6 x 300mm - - 6mm - - - Copper - SF
RS Stock No. 867-0938
Mfr. Part No.SF-06-150-S
BrandSPREADFAST
SGD10.76
Each
units
Heat Pipe 150mm - - 6 x 150mm - - 6mm - - - Copper - SF
RS Stock No. 867-0941
Mfr. Part No.SF-08-300-S
BrandSPREADFAST
SGD16.24
Each
units
Heat Pipe 300mm - - 8 x 300mm - - 8mm - - - Copper - SF
RS Stock No. 867-0916
Mfr. Part No.SF-04-100-S
BrandSPREADFAST
SGD9.78
Each
units
Heat Pipe 100mm - - 4 x 100mm - - 4mm - - - Copper - SF
RS Stock No. 867-0950
Mfr. Part No.SF-08-350-S
BrandSPREADFAST
SGD19.56
Each
units
Heat Pipe 350mm - - 8 x 350mm - - 8mm - - - Copper - SF
RS Stock No. 123-5624
Mfr. Part No.SF-CHS-555506F
BrandSPREADFAST
SGD3.57
Each
units
Universal Square Ceramic 55mm 55mm 6mm 55 x 55 x 6mm 10.4 °C/W @ 100 lfm, 6.2 °C/W @ 400 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Finned
RS Stock No. 867-0931
Mfr. Part No.SF-06-200-S
BrandSPREADFAST
SGD11.74
Each
units
Heat Pipe 200mm - - 6 x 200mm - - 6mm - - - Copper - SF
RS Stock No. 867-0890
Mfr. Part No.SF-03-100-S
BrandSPREADFAST
SGD9.97
Each
units
Heat Pipe 100mm - - 3 x 100mm - - 3mm - - - Copper - SF
RS Stock No. 123-5629
Mfr. Part No.SF-CHS-151506-PC
BrandSPREADFAST
SGD1.04
Each (In a Pack of 5)
units
Universal Square Ceramic 15mm 15mm 6mm 15 x 15 x 6mm 29.5 °C/W @ 400 lfm, 52.5 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Circular Pin Fin
RS Stock No. 867-0919
Mfr. Part No.SF-04-150-S
BrandSPREADFAST
SGD10.15
Each
units
Heat Pipe 150mm - - 4 x 150mm - - 4mm - - - Copper - SF
RS Stock No. 867-0900
Mfr. Part No.SF-03-150-S
BrandSPREADFAST
SGD9.78
Each
units
Heat Pipe 150mm - - 3 x 150mm - - 3mm - - - Copper - SF
RS Stock No. 123-5630
Mfr. Part No.SF-CHS-171706-PC
BrandSPREADFAST
SGD1.22
Each (In a Pack of 5)
units
Universal Square Ceramic 17mm 17mm 6mm 17 x 17 x 6mm 23.2 °C/W @ 400 lfm, 43.3 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - Aluminium Oxide - Ceramic Heat Spreader Circular Pin Fin
RS Stock No. 867-0944
Mfr. Part No.SF-08-150-S
BrandSPREADFAST
SGD15.29
Each
units
Heat Pipe 150mm - - 8 x 150mm - - 8mm - - - Copper - SF
RS Stock No. 867-0903
Mfr. Part No.SF-03-200-S
BrandSPREADFAST
SGD10.50
Each
units
Heat Pipe 200mm - - 3 x 200mm - - 3mm - - - Copper - SF
RS Stock No. 123-5633
Mfr. Part No.SF-CHS-232310-PC
BrandSPREADFAST
SGD1.97
Each (In a Pack of 5)
units
Universal Square Ceramic 23mm 23mm 10mm 23 x 23 x 10mm 12.7 °C/W @ 400 lfm, 24.0 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Circular Pin Fin
RS Stock No. 867-0953
Mfr. Part No.SF-10-150-S
BrandSPREADFAST
SGD14.67
Each
units
Heat Pipe 150mm - - 10 x 150mm - - 10mm - - - Copper - SF
RS Stock No. 123-5632
Mfr. Part No.SF-CHS-212110-PC
BrandSPREADFAST
SGD1.62
Each (In a Pack of 5)
units
Universal Square Ceramic 21mm 21mm 10mm 21 x 21 x 10mm 21.3 °C/W @ 100 lfm, 9.8 °C/W @ 400 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Circular Pin Fin
RS Stock No. 184-6735
Mfr. Part No.HS-DC-1/4-HFC-11
BrandSPREADFAST
SGD8.02
Each
units
1/4 Brick DC/DC Converter 62mm 40mm 13mm 62 x 40 x 13mm - - - Black DC-DC Converters - Aluminium - HS
RS Stock No. 184-6731
Mfr. Part No.HS-DC-1/4-LFL-20
BrandSPREADFAST
SGD8.02
Each
units
1/4 Brick DC/DC Converter 62mm 40mm 22mm 62 x 40 x 22mm - - - Black DC-DC Converters - Aluminium - HS