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 177-1797
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Universal 19" Alu 75mm 159mm 15mm 75 x 159 x 15mm 2K/W Clamp - Black - - - - -
RS-artikelnummer 712-4232
Tillv. art.nr576802B03100G
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- 19.05mm 14.48mm 12.7mm 19.05 x 14.48 x 12.7mm 27.3°C/W Clip - Black - Black Anodized - TO-220, TO-262 -
RS-artikelnummer 189-8606
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Universal Rectangular Alu 150mm 200mm 25mm 150 x 200 x 25mm 0.7K/W - - Black - - Aluminium - -
RS-artikelnummer 189-8684
Tillv. art.nrSK47-100-SA
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RS-artikelnummer 263-251
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- 20mm 35mm 20mm 20 x 35 x 20mm 17.9°C/W - - - - - Aluminium TO-220 -
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Tillv. art.nrWA204B
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Universal Rectangular Alu 1m 79mm 15mm - - - - - - - - - -
RS-artikelnummer 123-5639
Tillv. art.nrSF-CHS-505012-PC
VarumärkeSPREADFAST
61,98 kr
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Universal Square Ceramic 50mm 50mm 12mm 50 x 50 x 12mm 3.7 °C/W @ 400 lfm, 7.2 °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-artikelnummer 492-165
Tillv. art.nr00C855802B
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Universal Square Alu 26mm 26mm 12mm 26 x 26 x 12mm 10.8K/W Wire Clip - - - - Aluminium BGA -
RS-artikelnummer 189-8151
Tillv. art.nrSK129-50,8-STS-220
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- 50.8mm 42mm 25mm 50.8 x 42 x 25mm 4K/W Clip - Black - - - - -
RS-artikelnummer 123-5617
Tillv. art.nrSF-CHS-202006P
VarumärkeSPREADFAST
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Universal Square Ceramic 12.35mm 12.35mm 10mm 20 x 20 x 6mm 18.5 °C/W @ 400 lfm, 37.8 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Pin Fin
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Tillv. art.nrTDEX6015/TH12G
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Universal Square Alu with fan 60mm 60mm 47mm 60 x 60 x 47mm 0.5K/W - - Black - - - - -
RS-artikelnummer 268-127
Tillv. art.nrKL-50-B
VarumärkeAAVID THERMALLOY
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- 50mm 50mm 28mm 50 x 50 x 28mm 5.1°C/W Clip - - - - - TO-220 -
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Universal Square Alu 10mm 10mm 10mm 10 x 10 x 10mm 28.5K/W Adhesive Foil, Conductive Foil - Black - - - BGA -
RS-artikelnummer 189-8533
Tillv. art.nrSK85-100-SA
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Universal Rectangular Alu 100mm 160mm 40mm 100 x 160 x 40mm 0.9K/W - - Black - - - - -
RS-artikelnummer 692-0648
Tillv. art.nrLA 9 200 230 V
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Universal Rectangular Alu with fan 200mm 80mm 83mm 200 x 80 x 83mm 0.21K/W - - - - - - - -
RS-artikelnummer 880-1943
Tillv. art.nrILA-EXTRUSION-01-0150.
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Duris P5 150mm 24mm 18.9mm - - - - - - - - LED -
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