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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RS-artikelnummer 880-5853
Tillv. art.nr322400B00000G
VarumärkeAAVID THERMALLOY
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- - - 5.97mm 12.7 x 5.97mm 99.99°C/W Vertical 12.7mm Black - Black Anodized - TO-18 3224
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Clip 19mm 19mm 10mm 19 x 19 x 10mm 5.2K/W Clip - Black - - - - -
RS-artikelnummer 409-9925
Tillv. art.nrWA 217.0
VarumärkeSchaffner
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Universal Rectangular Alu 1m 200mm 25mm 1000 x 200 x 25mm 0.55K/W - - Black - - - - -
RS-artikelnummer 780-5899
Tillv. art.nrILA-HSINK-250X200X25MM-BLK-K
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17 LED Flood 250mm 25mm 200mm 250 x 25 x 200mm - Screw - Black - - - - -
RS-artikelnummer 712-4172
Tillv. art.nr241804B91200G
VarumärkeAAVID THERMALLOY
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1/8 Brick DC/DC Converter 57.9mm 22.9mm 11.4mm 57.9 x 22.9 x 11.4mm - Screw - - - - - - -
RS-artikelnummer 268-098
Tillv. art.nrPF750G
VarumärkeAAVID THERMALLOY
22,022 kr
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- 11mm 22mm 19mm 11 x 22 x 19mm 20.3K/W PCB Through Hole - - - - - TO-220 -
RS-artikelnummer 712-4257
Tillv. art.nrML7G
VarumärkeAAVID THERMALLOY
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RS-artikelnummer 271-864
Tillv. art.nr345AB1000B
VarumärkeABL Components
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Universal Rectangular Alu 100mm 120mm 37mm 100 x 120 x 37mm 1K/W - - Black - - - - -
RS-artikelnummer 880-5973
Tillv. art.nrMAX02NG
VarumärkeAAVID THERMALLOY
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Clip - - - - - - - - - - - - -
RS-artikelnummer 674-4781
Tillv. art.nrICK S 10x10x12,5
VarumärkeFischer Elektronik
44,17 kr
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Universal Square Alu 10mm 10mm 12.5mm 10 x 10 x 12.5mm 26.3K/W Adhesive Foil, Conductive Foil - - - - - - -
RS-artikelnummer 920-9439
Tillv. art.nrILA-HSINK-RADL-70X20MM-BLK
181,85 kr
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SCOB - - 20mm - - - 70mm - - - - LED -
RS-artikelnummer 750-0881
Tillv. art.nrBGA STD 015
VarumärkeABL Components
11,46 kr
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- 14mm 14mm 10mm 14 x 14 x 10mm 26.5K/W Adhesive Foil - Black - - - BGA -
RS-artikelnummer 490-7309
Tillv. art.nrS586/B/250
VarumärkeAAVID THERMALLOY
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Universal Rectangular Alu 250mm 200mm 25mm 250 x 200 x 25mm 0.43K/W - - Black - - - - -
RS-artikelnummer 189-8246
Tillv. art.nrSK88-75-SA
VarumärkeFischer Elektronik
101,13 kr
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- 75mm 100mm 50mm 75 x 100 x 50mm 1.1K/W - - Black - - - TO-3 -
RS-artikelnummer 189-8404
Tillv. art.nrSK56-200-SA
VarumärkeFischer Elektronik
882,33 kr
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Universal Rectangular Alu 200mm 300mm 40mm 200 x 300 x 40mm 0.3K/W - - Black - - - - -
RS-artikelnummer 712-4217
Tillv. art.nr573300D00010G
VarumärkeAAVID THERMALLOY
14,42 kr
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- 12.7mm 26.16mm 10.16mm 12.7 x 26.16 x 10.16mm 18°C/W PCB Surface Mount - - - - - - -
RS-artikelnummer 189-8561
Tillv. art.nrSK08-75-SA
VarumärkeFischer Elektronik
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- 75mm 88mm 35mm 75 x 88 x 35mm 1.9K/W - - Black - - - - -
RS-artikelnummer 189-9031
Tillv. art.nrICK35SA
VarumärkeFischer Elektronik
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- 35mm 18.5mm 15mm 35 x 18.5 x 15mm 15K/W - - Black - - - TO-220 -
RS-artikelnummer 750-0932
Tillv. art.nrBGA STD 090
VarumärkeABL Components
16,70 kr
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- 23.9mm 40mm 10mm 23.9 x 40 x 10mm 10K/W Adhesive Foil - Black - - - BGA -
RS-artikelnummer 189-8123
Tillv. art.nrSK125-50-SA
VarumärkeFischer Elektronik
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- 50mm 30mm 28mm 50 x 30 x 28mm 8.1K/W - - Black - - - TO-220 -
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