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 Price For Use With Length Width Height Dimensions Thermal Resistance Mounting Diameter Colour Application Finish Material Package Type Series
RS庫存編號 189-8274
製造零件編號SK92-100-SA
TWD452.00
單位
Universal Square Alu 100mm 100mm 40mm 100 x 100 x 40mm 1K/W - - Black - - Aluminium - -
RS庫存編號 300-2891
製造零件編號KL 195/50.8/SWI
BrandSeifert
TWD176.00
單位
- 42mm 25.4mm 50.8mm 42 x 25.4 x 50.8mm 4.2K/W Solder - Black - - - - -
RS庫存編號 189-8268
製造零件編號SK89-75-SA
TWD481.00
單位
- 75mm 80mm 78.6mm 75 x 80 x 78.6mm 1.3K/W - - Black - - - - -
RS庫存編號 674-4756
製造零件編號ICK BGA 14x14x10
TWD65.00
單位
BGA 14mm 14mm 10mm 14 x 14 x 10mm 27.4K/W Adhesive Foil, Conductive Foil - Black - - Aluminium BGA -
RS庫存編號 722-6915
製造零件編號SK 487/37,5 SA
TWD138.00
單位
TO-220, TO-247 37.5mm 52.3mm 28mm 37.5 x 52.3 x 28mm 5K/W Clip - Black - - - - -
RS庫存編號 123-5635
製造零件編號SF-CHS-313110-PC
BrandSPREADFAST
TWD56.20
/個 (每包:5個)
單位
Universal Square Ceramic 31mm 31mm 10mm 31 x 31 x 10mm 7.2 °C/W @ 400 lfm, 14.6 °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庫存編號 123-5622
製造零件編號SF-CHS-202003F
BrandSPREADFAST
TWD18.60
/個 (每包:5個)
單位
Universal Square Ceramic 20mm 20mm 2.5mm 20 x 20 x 2.5mm 43 °C/W @ 400 lfm, 58.2 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Finned
RS庫存編號 403-184
製造零件編號437874
TWD36.80
/個 (每包:10個)
單位
- 50mm 34.5mm 50mm 12.5 x 34.5 x 50mm 8.8K/W Solder - Black - - - TO-218, TO-220, TO-247 -
RS庫存編號 268-105
製造零件編號400020
TWD51.00
/個 (每包:5個)
單位
- 19mm 22mm 19mm 11 x 22 x 19mm 23°C/W PCB Through Hole - - - - - TO-220 -
RS庫存編號 485-8875
製造零件編號PF720
TWD8.20
/個 (每包:10個)
單位
- 19.84mm 8.1mm 20mm 19.84 x 8.1 x 20mm 28.9°C/W PCB Through Hole - - - - - TO-220 -
RS庫存編號 467-551
製造零件編號CMBA054949
BrandMalico
TWD651.00
單位
- 37.5mm 37.5mm 33mm 37.5 x 37.5 x 33mm 2.5K/W Screw - - - - - BGA -
RS庫存編號 674-4765
製造零件編號ICK BGA 35x35x10
TWD93.00
單位
Universal Square Alu 35mm 35mm 10mm 35 x 35 x 10mm 15.7K/W Adhesive Foil, Conductive Foil - Black - - Aluminium BGA -
RS庫存編號 903-3087
製造零件編號109AB1000B
TWD405.00
單位
Universal Square Alu 100mm 100mm 15mm 100 x 100 x 15mm 0.83°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS庫存編號 189-8066
製造零件編號SK100-37-5-SA
TWD189.00
單位
Universal Rectangular Alu 37.5mm 66mm 40mm 37.5 x 66 x 40mm 2.7K/W - - Black - - Aluminium - -
RS庫存編號 259-8739
製造零件編號SK89-75KLSSR1
TWD911.00
單位
- 75mm 80mm 78.6mm 75 x 80 x 78.6mm 1.3K/W DIN Rail - Black - Anodized Stainless Steel - -
RS庫存編號 674-4813
製造零件編號ICK S 32x32x20
TWD200.00
單位
Universal Square Alu 32.7mm 32.7mm 20mm 32.7 x 32.7 x 20mm 3.7K/W Adhesive Foil, Conductive Foil - - - - Aluminium - -
RS庫存編號 191-0374
製造零件編號UK14-25-SA-220
TWD33.00
單位
- 25mm 14mm 15mm 25 x 14 x 15mm 20K/W Clip, Screw - Black - - - TO-220 -
RS庫存編號 698-8105
製造零件編號FK 244 08 D2 PAK
TWD30.60
/個 (每包:5個)
單位
- 26mm 8mm 10mm 26 x 8 x 10mm 29.3K/W Solder - Silver - - - - -
RS庫存編號 168-6346
製造零件編號WA 203
BrandSeifert
TWD1,405.00
單位
Universal Rectangular Alu 1m 32mm 20mm 1000 x 32 x 20mm - - - Black - - Aluminium - -
RS庫存編號 507-4753
製造零件編號002504
TWD10.60
/個 (每包:5個)
單位
- 13.21mm 19.05mm 9.52mm 13.21 x 19.05 x 9.52mm 25.9°C/W - - Black - Black Anodized - TO-220 -