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 360-8821
Tillv. art.nrKL 112.25.C SW
VarumärkeSchaffner
16,88 kr
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- 25mm 11mm 16mm 25 x 11 x 16mm 18K/W Screw - Black - - - TO-220 -
RS-artikelnummer 467-567
Tillv. art.nrEBA19031-10CL+T710
VarumärkeMalico
74,23 kr
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Clip 19mm 19mm 10mm 19 x 19 x 10mm 5.2K/W Clip - Black - - - - -
RS-artikelnummer 780-5940
Tillv. art.nrILA-HSINK-STAR-50X80MM-RED-K
286,92 kr
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Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 16, Oslon 4, Oslon 9, Stanley 1, Stanley 4 - - 80mm 50 (Dia.) x 80mm - Screw 50mm Red - - - LED -
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 903-3084
Tillv. art.nr109AB2000B
VarumärkeABL Components
177,75 kr
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Universal Rectangular Alu 200mm 100mm 15mm 200 x 100 x 15mm 0.48°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS-artikelnummer 234-2491
Tillv. art.nr510AB1000MB
VarumärkeABL Components
97,24 kr
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Universal Rectangular Alu 100mm 65mm 20mm 100 x 65 x 20mm 2.3K/W - - Black - - - - -
RS-artikelnummer 706-6420
Tillv. art.nrTEP-HS1
VarumärkeTRACOPOWER
463,00 kr
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TEP-75WI 61mm 57.9mm 11.4mm 61 x 57.9 x 11.4mm - Screw - - - - - - -
RS-artikelnummer 189-8511
Tillv. art.nrSK68-50-SA
VarumärkeFischer Elektronik
37,95 kr
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- 50mm 46mm 33mm 50 x 46 x 33mm 4.8K/W Screw - Black - - - TO-220 -
RS-artikelnummer 780-5925
Tillv. art.nrILA-HSINK-STAR-50X40MM-SVR-K
175,62 kr
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Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 40mm 50 (Dia.) x 40mm - Screw 50mm Silver - - - LED -
RS-artikelnummer 263-245
VarumärkeRS PRO
31,701 kr
Each (In a Pack of 10)
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- 25.4mm 20.3mm 6.81mm 25.4 x 20.3 x 6.81mm 24°C/W Clip - - - - - TO-220 -
RS-artikelnummer 698-8098
Tillv. art.nrICK BGA 14x14
VarumärkeFischer Elektronik
18,72 kr
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Universal Square Alu 14mm 14mm 6mm 14 x 14 x 6mm 29K/W Adhesive Foil, Conductive Foil - Black - - - BGA -
RS-artikelnummer 504-0722
Tillv. art.nrICKSMDA13
VarumärkeFischer Elektronik
5,232 kr
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Universal Rectangular Alu 13mm 6.3mm 4.8mm 13 x 6.3 x 4.8mm 63K/W Conductive Adhesive, Conductive Foil - Black - - - DIL-IC -
RS-artikelnummer 712-4223
Tillv. art.nr576802B04000G
VarumärkeAAVID THERMALLOY
3,578 kr
Each (In a Pack of 5)
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- 19.05mm 12.7mm 19.05mm 12.7 x 14.48 x 19.05mm 27.3K/W Solder - Black - - - TO-220, TO-262 -
RS-artikelnummer 221-2104
Tillv. art.nrSK409-38,1STC
VarumärkeFischer Elektronik
22,13 kr
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- 38.1mm 45mm 12.7mm 38.1 x 45 x 12.7mm 7K/W Clip - Black - - - - -
RS-artikelnummer 189-9031
Tillv. art.nrICK35SA
VarumärkeFischer Elektronik
10,90 kr
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- 35mm 18.5mm 15mm 35 x 18.5 x 15mm 15K/W - - Black - - - TO-220 -
RS-artikelnummer 712-4251
Tillv. art.nrML8G
VarumärkeAAVID THERMALLOY
3,198 kr
Each (In a Pack of 5)
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- 12.3mm 29mm 35mm 12.3 x 29 x 35mm 13°C/W Clip - Black - - - TO-220 -
RS-artikelnummer 880-5973
Tillv. art.nrMAX02NG
VarumärkeAAVID THERMALLOY
6 861,62 kr
1 Pack of 5000
Förpackning(ar)
Clip - - - - - - - - - - - - -
RS-artikelnummer 712-4201
Tillv. art.nr591202B00000G
VarumärkeAAVID THERMALLOY
7,982 kr
Each (In a Pack of 5)
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- 12.7mm 14.48mm 15.24mm 12.7 x 14.48 x 15.24mm 26.8°C/W PCB Through Hole - Black - - - TO-220, TO-262 -
RS-artikelnummer 903-3166
Tillv. art.nr153AB1000B
VarumärkeABL Components
130,57 kr
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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 271-864
Tillv. art.nr345AB1000B
VarumärkeABL Components
195,22 kr
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Universal Rectangular Alu 100mm 120mm 37mm 100 x 120 x 37mm 1K/W - - Black - - - - -
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