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 189-8404
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- 25mm 11mm 16mm 25 x 11 x 16mm 18K/W Screw - Black - - - TO-220 -
RS-artikelnummer 912-5004
Tillv. art.nrILA-HSNK-190x90x50mm-BLK
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RS-artikelnummer 692-0626
Tillv. art.nrLA 9 150 24 V
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Universal Rectangular Alu with fan 150mm 80mm 83mm 150 x 80 x 83mm 0.18K/W - - - - - - - -
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Tillv. art.nrSK 480/50 SA
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RS-artikelnummer 168-8077
Tillv. art.nrWA210B
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Universal Rectangular Alu 1m 200mm 40mm 1000 x 200 x 40mm - - - - - - - - -
RS-artikelnummer 674-4781
Tillv. art.nrICK S 10x10x12,5
VarumärkeFischer Elektronik
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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 903-3166
Tillv. art.nr153AB1000B
VarumärkeABL Components
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Universal Rectangular Alu 100mm 66mm 40mm 100 x 66 x 40mm 0.69°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS-artikelnummer 268-098
Tillv. art.nrPF750G
VarumärkeAAVID THERMALLOY
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- 11mm 22mm 19mm 11 x 22 x 19mm 20.3K/W PCB Through Hole - - - - - TO-220 -
RS-artikelnummer 221-2104
Tillv. art.nrSK409-38,1STC
VarumärkeFischer Elektronik
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- 38.1mm 45mm 12.7mm 38.1 x 45 x 12.7mm 7K/W Clip - Black - - - - -
RS-artikelnummer 177-1804
Tillv. art.nrWA212-0B
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Universal Rectangular Alu 1m 150mm 27mm 1000 x 150 x 27mm - - - - - - - - -
RS-artikelnummer 221-2160
Tillv. art.nrSK75-50-TO220
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- 50mm 32mm 14mm 50 x 32 x 14mm 8.5K/W Screw - Black - - - TO-220 -
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 780-5906
Tillv. art.nrILA-HSINK-STAR-50X20MM-RED-K
127,70 kr
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Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 20mm 50 (Dia.) x 20mm - Screw 50mm Red - - - LED -
RS-artikelnummer 750-0932
Tillv. art.nrBGA STD 090
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- 23.9mm 40mm 10mm 23.9 x 40 x 10mm 10K/W Adhesive Foil - Black - - - BGA -
RS-artikelnummer 920-9420
Tillv. art.nrILA-HSINK-RADL-100X65MM-BLK
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SCOB - - 65mm - - - 100mm - - - - LED -
RS-artikelnummer 189-8274
Tillv. art.nrSK92-100-SA
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Universal Square Alu 100mm 100mm 40mm 100 x 100 x 40mm 1K/W - - Black - - - - -
RS-artikelnummer 360-8821
Tillv. art.nrKL 112.25.C SW
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- 25mm 11mm 16mm 25 x 11 x 16mm 18K/W Screw - Black - - - TO-220 -
RS-artikelnummer 189-8246
Tillv. art.nrSK88-75-SA
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- 75mm 100mm 50mm 75 x 100 x 50mm 1.1K/W - - Black - - - TO-3 -
RS-artikelnummer 903-3172
Tillv. art.nr132AB1000B
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Universal Rectangular Alu 100mm 250mm 30mm 100 x 250 x 30mm 0.24°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
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