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’.


...
Read more Read less

Filters

Viewing 41 - 60 of 775 products
Results per page
Description Price For Use With Length Width Height Dimensions Thermal Resistance Mounting Diameter Colour Application Finish Material Package Type Series
RS Stock No. 189-8476
Mfr. Part No.SK64-75-SA-2M3
kr 71,68
Each
Units
- 75mm 70mm 25mm 75 x 70 x 25mm 2.7K/W Screw - Black - - - - -
RS Stock No. 189-9132
Mfr. Part No.FK231SA220
kr 9,75
Each
Units
- 19mm 13.5mm 9.5mm 19 x 13.5 x 9.5mm 24K/W Screw - Black - - - TO-220 -
RS Stock No. 158-556
Mfr. Part No.TDEX6015/TH12G
kr 412,95
Each
Units
Universal Square Alu with fan 60mm 60mm 47mm 60 x 60 x 47mm 0.5K/W - - Black - - - - -
RS Stock No. 867-9039
Mfr. Part No.RPI-COOLINGKIT.9
kr 37,15
Each
Units
Banana Pi BPI-M1, Banana Pi BPI-M1+, Banana Pi BPI-M2 Berry, Banana Pi BPI-M2+, Raspberry Pi® 2 B, Raspberry Pi® 3 A+, Raspberry Pi® 3 B, Raspberry Pi® 3 B+, Raspberry Pi® 4 B, Raspberry Pi® A, Raspberry Pi® A+, Raspberry Pi® B, Raspberry Pi® B+ 8.5 mm, 19 mm 6.35 mm, 19 mm 5mm - - - - Black - - - - -
RS Stock No. 189-8460
Mfr. Part No.SK64-37,5-SA-1M3
kr 49,85
Each
Units
- 37.5mm 70mm 25mm 37.5 x 70 x 25mm 4.1K/W Screw - Black - - - - -
RS Stock No. 234-2520
Mfr. Part No.520AB0750MB
kr 81,44
Each
Units
Universal Rectangular Alu 75mm 88mm 35mm 75 x 88 x 35mm 1.65K/W - - Black - - - - -
RS Stock No. 722-6892
Mfr. Part No.SK 481/84 SA
kr 49,85
Each
Units
- 84mm 30mm 45mm 84 x 30 x 45mm 3K/W Clip - Black - - - - -
RS Stock No. 409-9925
Mfr. Part No.WA 217.0
BrandSchaffner
kr 1 124,02
Each
Units
Universal Rectangular Alu 1m 200mm 25mm 1000 x 200 x 25mm 0.55K/W - - Black - - - - -
RS Stock No. 189-8101
Mfr. Part No.SK104-38,1-STS-220
kr 19,34
Each
Units
- 38.1mm 34.9mm 12.7mm 38.1 x 34.9 x 12.7mm 11K/W Clip - Black - - - TO-220 -
RS Stock No. 168-8055
Mfr. Part No.WA203B
BrandSchaffner
kr 250,13
Each
Units
Universal Rectangular Alu 1m 32mm 20mm 1000 x 32 x 20mm - - - Silver - - - - -
RS Stock No. 750-0908
Mfr. Part No.BGA STD 050
kr 18,462
Each (In a Bag of 5)
Units
- 20mm 20mm 19.1mm 20 x 20 x 19.1mm 14K/W Adhesive Foil - Black - - - BGA -
RS Stock No. 750-0881
Mfr. Part No.BGA STD 015
kr 11,048
Each (In a Bag of 5)
Units
- 14mm 14mm 10mm 14 x 14 x 10mm 26.5K/W Adhesive Foil - Black - - - BGA -
RS Stock No. 402-709
Mfr. Part No.P35/250A
BrandSemikron
kr 765,29
Each
Units
SEMIPACK, SEMIPONT, SEMITRANS, Universal Rectangular Alu 250mm 200mm 40mm 250 x 200 x 40mm 0.41K/W - - Black - - - - -
RS Stock No. 221-2154
Mfr. Part No.SK75-37,5TO220
kr 16,61
Each
Units
- 37.5mm 32mm 14mm 37.5 x 32 x 14mm 10K/W Screw - Black - - - TO-220 -
RS Stock No. 712-4305
Mfr. Part No.507222B00000G
kr 4,46
Each (In a Pack of 5)
Units
- 37.34mm 44.45mm 9.52mm 44.45 x 9.52 x 37.34mm 9.6°C/W - - Black - Black Anodized - TO-220 -
RS Stock No. 692-0660
Mfr. Part No.LA 7 100 24 V
kr 1 560,80
Each
Units
Universal Rectangular Alu with fan 100mm 125mm 74mm 100 x 125 x 74mm 0.12K/W - - - - - - - -
RS Stock No. 234-2457
Mfr. Part No.159AB1500B
kr 429,52
Each
Units
Universal Rectangular Alu 150mm 160mm 40mm 150 x 160 x 40mm 0.65K/W - - Black - - - - -
RS Stock No. 712-4241
Mfr. Part No.5900PBG
kr 6,992
Each (In a Pack of 5)
Units
- 12.5mm 30.4mm 31.2mm 12.5 x 30.4 x 31.2mm 13°C/W PCB Through Hole - Black - - - TO-220 -
RS Stock No. 410-0003
Mfr. Part No.WA 412.0B
BrandSchaffner
kr 277,18
Each
Units
Universal Rectangular Alu 1m 29mm 11.5mm 1000 x 29 x 11.5mm 5.4K/W - - - - - - - -
RS Stock No. 698-8098
Mfr. Part No.ICK BGA 14x14
kr 18,05
Each
Units
Universal Square Alu 14mm 14mm 6mm 14 x 14 x 6mm 29K/W Adhesive Foil, Conductive Foil - Black - - - BGA -
Related Products
Cold-forged, ultra-high performancelow thermal resistancesuitable for low profile ...
Description:
Cold-forged, ultra-high performancelow thermal resistancesuitable for low profile passive cooling. ApplicationsSuitable for use with a wide range of semi-conductor devices with flat surfaces.
High-efficiency PCB lead heatsinks for vertically mounting transistors ...
Description:
High-efficiency PCB lead heatsinks for vertically mounting transistors in TO-220 or SOT-32 plastic housings.Receptacles available with stock number 218-2277.
Fischer Elektronik hollow-fin cooling aggregates with fitted axial ...
Description:
Fischer Elektronik hollow-fin cooling aggregates with fitted axial fans offer a versatile and efficient cooling solution in high powered applications where heat dissipation is only possible by forced convection. With a range of sizes to suit an array of requirements, ...
Aavid Thermalloy insulating full lengths of extruded aluminium ...
Description:
Aavid Thermalloy insulating full lengths of extruded aluminium alloy heatsinks.