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 doesnt 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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Beskrivning Pris For Use With Length Width Height Dimensions Thermal Resistance Mounting Diameter Colour Application Finish Material Package Type Series
RS-artikelnummer 263-251
VarumärkeRS PRO
11,584 kr
Each (In a Pack of 10)
Enheter
- 20mm 35mm 20mm 20 x 35 x 20mm 17.9°C/W - - - - - Aluminium TO-220 -
RS-artikelnummer 263-245
VarumärkeRS PRO
31,701 kr
Each (In a Pack of 10)
Enheter
- 25.4mm 20.3mm 6.81mm 25.4 x 20.3 x 6.81mm 24°C/W Clip - - - - - TO-220 -
RS-artikelnummer 176-4165
VarumärkeRS PRO
2,68 kr
Each (In a Pack of 10)
Enheter
- 15.2mm 13.6mm 12.7mm 15.2 x 13.6 x 12.7mm 11 (Forced) °C/W, 29 (Natural) °C/W Bolt On, Horizontal, Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-4150
VarumärkeRS PRO
3,47 kr
Each (In a Pack of 10)
Enheter
- 30mm 25.4mm 12.7mm 30 x 25.4 x 12.7mm 14 (Natural) °C/W, 7.3 (Forced) °C/W Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-3941
VarumärkeRS PRO
3,107 kr
Each (In a Box of 250)
Enheter
Surface Mount Heat Sink 8mm 22.9mm 10.2mm 8 x 22.9 x 10.2mm 21 (Forced)°C/W Surface Mount - Black - Tin Plated Copper SMD RSAW294
RS-artikelnummer 176-4153
VarumärkeRS PRO
1,216 kr
Each (In a Pack of 100)
Enheter
- 19.1mm 13.2mm 12.7mm 19.1 x 13.2 x 12.7mm 25 (Natural) °C/W, 7 (Forced) °C/W Horizontal, Mounting Hole, Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-4151
VarumärkeRS PRO
42,34 kr
Each
Enheter
Universal Square Alu 43.2mm 44.5mm 16.5mm 43.2 x 44.5 x 16.5mm 2 (Forced)°C/W Horizontal, Top Mount, Vertical - Black - Black Anodized Aluminium ASIC, BGA, CPU, LGA RSAW294
RS-artikelnummer 176-4162
VarumärkeRS PRO
13,60 kr
Each (In a Pack of 5)
Enheter
- 46.4mm 46.4mm 33.3mm 46.4 x 46.4 x 33.3mm 2 (Forced) °C/W, 2 (Natural) °C/W Bolt On, Horizontal, Vertical - Black - Black Anodized Aluminium TO-3 RSAW294
RS-artikelnummer 176-4182
VarumärkeRS PRO
1,74 kr
Each (In a Pack of 20)
Enheter
- 19.1mm 19.1mm 9.5mm 19.1 x 19.1 x 9.5mm 24.5 (Natural) °C/W, 7.2 (Forced) °C/W Horizontal, Screw, Vertical - Black - Black Anodized Aluminium TO-218, TO-220 RSAW294
RS-artikelnummer 176-4197
VarumärkeRS PRO
29,80 kr
Each
Enheter
1/2 Brick DC/DC Converter 57.9mm 61mm 6.1mm 57.9 x 61 x 6.1mm 4.2 (Forced)°C/W Horizontal - Black - Black Anodized Aluminium - RSAW294
RS-artikelnummer 176-3938
VarumärkeRS PRO
1 554,80 kr
1 Box of 2000
Låda(or)
- 19.1mm 13.2mm 9.5mm 19.1 x 13.2 x 9.5mm 28 (Natural) °C/W, 8 (Forced) °C/W Bolt On, Horizontal, Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-4168
VarumärkeRS PRO
1,90 kr
Each (In a Pack of 20)
Enheter
- 19.1mm 14.5mm 12.7mm 19.1 x 14.5 x 12.7mm 28.5 (Natural) °C/W, 7.5 (Forced) °C/W Bolt On, Horizontal, Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-3936
VarumärkeRS PRO
11 393,50 kr
1 Box of 4000
Låda(or)
- 30mm 25.4mm 12.7mm 30 x 25.4 x 12.7mm 14 (Natural) °C/W, 7.3 (Forced) °C/W Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-4185
VarumärkeRS PRO
4,90 kr
Each (In a Pack of 10)
Enheter
- 38.1mm 34.9mm 12.7mm 38.1 x 34.9 x 12.7mm 5.5 (Forced)°C/W Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-4176
VarumärkeRS PRO
4,669 kr
Each (In a Pack of 10)
Enheter
- 25.4mm 34.9mm 12.7mm 25.4 x 34.9 x 12.7mm 5.8 (Forced)°C/W Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-4152
VarumärkeRS PRO
0,949 kr
Each (In a Pack of 100)
Enheter
- 19.1mm 13.2mm 9.5mm 19.1 x 13.2 x 9.5mm 28 (Natural) °C/W, 8 (Forced) °C/W Bolt On, Horizontal, Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-3950
VarumärkeRS PRO
8 029,00 kr
1 Box of 2000
Låda(or)
- 38.1mm 34.9mm 12.7mm 38.1 x 34.9 x 12.7mm 5.5 (Forced)°C/W Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-3939
VarumärkeRS PRO
907,00 kr
1 Box of 1000
Låda(or)
- 19.1mm 13.2mm 12.7mm 19.1 x 13.2 x 12.7mm 25 (Natural) °C/W, 7 (Forced) °C/W Horizontal, Mounting Hole, Vertical - Black - Black Anodized Aluminium TO-220 RSAW294
RS-artikelnummer 176-4194
VarumärkeRS PRO
32,60 kr
Each
Enheter
1/2 Brick DC/DC Converter 61mm 57.9mm 11.4mm 61 x 57.9 x 11.4mm 2.1 (Forced)°C/W Vertical - Black - Black Anodized Aluminium - RSAW294
RS-artikelnummer 176-3942
VarumärkeRS PRO
11,126 kr
Each (In a Box of 500)
Enheter
- 46.4mm 46.4mm 33.3mm 46.4 x 46.4 x 33.3mm 2 (Forced) °C/W, 2 (Natural) °C/W Bolt On, Horizontal, Vertical - Black - Black Anodized Aluminium TO-3 RSAW294
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