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. 263-245
FabrikantRS PRO
€ 0,625
Each (In a Pack of 10)
Aantal stuks
- 25.4mm 20.3mm 6.81mm 25.4 x 20.3 x 6.81mm 24°C/W Clip - - - - - TO-220 -
RS-stocknr. 263-251
FabrikantRS PRO
€ 1,12
Each (In a Pack of 10)
Aantal stuks
- 20mm 35mm 20mm 20 x 35 x 20mm 17.9°C/W - - - - - Aluminium TO-220 -
RS-stocknr. 176-4185
FabrikantRS PRO
€ 0,49
Each (In a Pack of 10)
Aantal stuks
- 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-stocknr. 176-3942
FabrikantRS PRO
€ 1,121
Each (In a Box of 500)
Aantal stuks
- 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-stocknr. 176-3936
FabrikantRS PRO
€ 1.148,20
1 Box of 4000
Box(es)
- 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-stocknr. 176-3943
FabrikantRS PRO
€ 665,30
1 Box of 3000
Box(es)
- 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-stocknr. 176-4197
FabrikantRS PRO
€ 3,00
Each
Aantal stuks
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-stocknr. 176-4189
FabrikantRS PRO
€ 0,90
Each (In a Pack of 5)
Aantal stuks
- 25.4mm 41.9mm 25.4mm 25.4 x 41.9 x 25.4mm 3.1 (Forced) °C/W, 8.7 (Natural) °C/W Vertical - Black - Black Anodized Aluminium TO-218, TO-220, TO-247 RSAW294
RS-stocknr. 176-4150
FabrikantRS PRO
€ 0,35
Each (In a Pack of 10)
Aantal stuks
- 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-stocknr. 176-4151
FabrikantRS PRO
€ 4,10
Each
Aantal stuks
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-stocknr. 176-4165
FabrikantRS PRO
€ 0,27
Each (In a Pack of 10)
Aantal stuks
- 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-stocknr. 176-3945
FabrikantRS PRO
€ 574,30
1 Box of 1000
Box(es)
- 25.4mm 41.9mm 38.1mm 25.4 x 41.9 x 38.1mm 3.3 (Forced) °C/W, 6.3 (Natural) °C/W Vertical - Black - Black Anodized Aluminium TO-218, TO-220, TO-247 RSAW294
RS-stocknr. 176-4162
FabrikantRS PRO
€ 1,38
Each (In a Pack of 5)
Aantal stuks
- 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-stocknr. 176-4172
FabrikantRS PRO
€ 0,68
Each (In a Pack of 5)
Aantal stuks
- 25.4mm 41.9mm 38.1mm 25.4 x 41.9 x 38.1mm 3.3 (Forced) °C/W, 6.3 (Natural) °C/W Vertical - Black - Black Anodized Aluminium TO-218, TO-220, TO-247 RSAW294
RS-stocknr. 176-4179
FabrikantRS PRO
€ 4,83
Each
Aantal stuks
1/4 Brick DC/DC Converter 57.9mm 36.8mm 11.5mm 57.9 x 36.8 x 11.5mm 2.3 (Forced)°C/W Horizontal, Screw, Vertical - Black - Black Anodized Aluminium - RSAW294
RS-stocknr. 176-3939
FabrikantRS PRO
€ 91,40
1 Box of 1000
Box(es)
- 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-stocknr. 176-3950
FabrikantRS PRO
€ 809,10
1 Box of 2000
Box(es)
- 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-stocknr. 176-4153
FabrikantRS PRO
€ 0,118
Each (In a Pack of 100)
Aantal stuks
- 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-stocknr. 176-4176
FabrikantRS PRO
€ 0,451
Each (In a Pack of 10)
Aantal stuks
- 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-stocknr. 234-2463
Fabrikantnummer159AB2000B
FabrikantABL Components
€ 39,69
Each
Aantal stuks
Universal Rectangular Alu 200mm 160mm 40mm 200 x 160 x 40mm 0.55K/W - - Black - - - - -
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