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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Description Prix For Use With Length Width Height Dimensions Thermal Resistance Mounting Diameter Colour Application Finish Material Package Type Series
N° de stock RS 867-9039
Référence fabricantRPI-COOLINGKIT.9
3,60 €
Each
Unité
Raspberry Pi 1 & 2 - - - - - - - Black - - - - -
N° de stock RS 492-165
Référence fabricant00C855802B
2,42 €
Each
Unité
BGA 26mm 26mm 12mm 26 x 26 x 12mm 10.8K/W Wire Clip - - - - Aluminium - -
N° de stock RS 722-6818
Référence fabricantSK 570/50 SA
12,69 €
Each
Unité
- - - 50mm 70 (Dia.) x 50mm 1.3K/W Screw 70mm Black - - - - -
N° de stock RS 189-8612
Référence fabricantSK42-200-SA
23,55 €
Each
Unité
- 200mm 200mm 25mm 200 x 200 x 25mm 1.65 → 0.7K/W - - Black - - Aluminium - -
N° de stock RS 189-8606
Référence fabricantSK42-150-SA
21,32 €
Each
Unité
- 150mm 200mm 25mm 150 x 200 x 25mm 0.7K/W - - Black - - Aluminium - -
N° de stock RS 169-4252
Référence fabricantSK92 150SA
23,30 €
Each
Unité
- 150mm 100mm 40mm 150 x 100 x 40mm 1K/W - - Black - - - - -
N° de stock RS 780-5919
Référence fabricantILA-HSINK-STAR-50X40MM-BLK-K
17,84 €
Each
Unité
Dragon 1+ PowerStar, Duris 1+ PowerStar, Duris 4+ PowerStar, OSLON 1+ PowerStar, OSLON 4+ PowerStar, Stanley 1 PowerStar, Stanley 4 PowerCluster - - 40mm 50 (Dia.) x 40mm - Screw 50mm Black - - - - -
N° de stock RS 722-6915
Référence fabricantSK 487/37,5 SA
3,11 €
Each
Unité
TO-220, TO-247 37.5mm 52.3mm 28mm 37.5 x 52.3 x 28mm 5K/W Clip - Black - - - - -
N° de stock RS 189-8842
Référence fabricantSK04-37,5-SA
3,08 €
Each
Unité
CB, TO-3 37.5mm 97mm 25mm 37.5 x 97 x 25mm 2.7K/W - - Black - - - - -
N° de stock RS 880-5881
Référence fabricant416101U00000G
459,173 €
Each (In a Pack of 10)
Unité
- 152mm 177mm 14mm 152 x 177 x 14mm - Surface Mount - - Power Applications - Aluminium - 4161
N° de stock RS 692-0638
Référence fabricantLA 9 150 230 V
118,34 €
Each
Unité
- 150mm 80mm 83mm 150 x 80 x 83mm 0.25K/W - - - - - - - -
N° de stock RS 774-2821
Référence fabricantLAM 5 100 24
56,74 €
Each
Unité
TO-218, TO-220, TO-247, TO-264 100mm 50mm 50mm 100 x 50 x 50mm 0.4K/W PCB Mount - Natural - - - - -
N° de stock RS 505-2832
Référence fabricantP1/120B
MarqueSemikron
60,14 €
Each
Unité
- 120mm 120mm 120mm 120 x 120 x 120mm 0.7K/W - - Black - - - - -
N° de stock RS 168-8049
Référence fabricantWA202B
MarqueSchaffner
93,38 €
Each
Unité
- 1m 120mm 37mm 1000 x 120 x 37mm - - - - - - - - -
N° de stock RS 712-4260
Référence fabricantML26AAG
0,726 €
Each (In a Pack of 5)
Unité
TO-220 25mm 15mm 20mm 25 x 15 x 20mm 17.9°C/W PCB Through Hole - Black - - - - -
N° de stock RS 189-8599
Référence fabricantSK42-100-SA
18,85 €
Each
Unité
- 100mm 200mm 25mm 100 x 200 x 25mm 0.95K/W - - Black - - Aluminium - -
N° de stock RS 263-251
MarqueRS PRO
1,12 €
Each (In a Pack of 10)
Unité
TO-220 20mm 35mm 20mm 20 x 35 x 20mm 17.9°C/W - - - - - Aluminium - -
N° de stock RS 722-6864
Référence fabricantSK 575/50 SA
2,74 €
Each
Unité
TO-220, TO-247 50mm 6mm 50mm 50 x 6 x 50mm 6.8K/W Clip - Black - - - - -
N° de stock RS 189-8870
Référence fabricantSK08-100-SA
7,34 €
Each
Unité
CB, TO-3 100mm 88mm 35mm 100 x 88 x 35mm 1.5K/W - - Black - - - - -
N° de stock RS 189-8583
Référence fabricantSK13-35-SA-22
1,32 €
Each
Unité
TO-220 35mm 17mm 13mm 35 x 17 x 13mm 17K/W Clip, Screw - Black - - - - -