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 867-0935
製造零件編號SF-06-300-S
BrandSPREADFAST
HK$82.94
單位
- 300mm - - 6 x 300mm - - 6mm - - - Copper - SF
RS庫存編號 867-0890
製造零件編號SF-03-100-S
BrandSPREADFAST
HK$56.58
單位
- 100mm - - 3 x 100mm - - 3mm - - - Copper - SF
RS庫存編號 867-0938
製造零件編號SF-06-150-S
BrandSPREADFAST
HK$66.91
單位
- 150mm - - 6 x 150mm - - 6mm - - - Copper - SF
RS庫存編號 867-0944
製造零件編號SF-08-150-S
BrandSPREADFAST
HK$106.57
單位
- 150mm - - 8 x 150mm - - 8mm - - - Copper - SF
RS庫存編號 123-5637
製造零件編號SF-CHS-424212-PC
BrandSPREADFAST
HK$35.00
單位
- 42mm 42mm 12mm 42 x 42 x 12mm 5.1 °C/W @ 400 lfm, 9.4 °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 867-0925
製造零件編號SF-05-250-S
BrandSPREADFAST
HK$81.54
單位
- 250mm - - 5 x 250mm - - 5mm - - - Copper - SF
RS庫存編號 123-5619
製造零件編號SF-CHS-323206P
BrandSPREADFAST
HK$14.658
/個 (每包:5個)
單位
- 30.5mm 30.5mm 6mm 30.5 x 30.5 x 6mm 15.7 °C/W @ 400 lfm, 26.7 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Pin Fin
RS庫存編號 123-5632
製造零件編號SF-CHS-212110-PC
BrandSPREADFAST
HK$13.276
/個 (每包:5個)
單位
- 21mm 21mm 10mm 21 x 21 x 10mm 9.8 °C/W @ 400 lfm, 21.3 °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 123-5638
製造零件編號SF-CHS-454512-PC
BrandSPREADFAST
HK$44.90
單位
- 45mm 45mm 12mm 45 x 45 x 12mm 5.3 °C/W @ 400 lfm, 9.9 °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 123-5620
製造零件編號SF-CHS-434306P
BrandSPREADFAST
HK$28.97
單位
- 43mm 43mm 6mm 43 x 43 x 6mm 13.2 °C/W @ 400 lfm, 22.4 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Pin Fin
RS庫存編號 867-0929
製造零件編號SF-06-100-S
BrandSPREADFAST
HK$73.22
單位
- 100mm - - 6 x 100mm - - 6mm - - - Copper - SF
RS庫存編號 867-0957
製造零件編號SF-10-250-S
BrandSPREADFAST
HK$114.94
單位
- 250mm - - 10 x 250mm - - 10mm - - - Copper - SF
RS庫存編號 123-5617
製造零件編號SF-CHS-202006P
BrandSPREADFAST
HK$9.414
/個 (每包:5個)
單位
- 12.35mm 12.35mm 10mm 20 x 20 x 6mm 18.5 °C/W @ 400 lfm, 37.8 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Pin Fin
RS庫存編號 123-5633
製造零件編號SF-CHS-232310-PC
BrandSPREADFAST
HK$15.932
/個 (每包:5個)
單位
- 23mm 23mm 10mm 23 x 23 x 10mm 12.7 °C/W @ 400 lfm, 24.0 °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 123-5625
製造零件編號SF-CHS-707012F
BrandSPREADFAST
HK$42.36
單位
- 70mm 70mm 12mm 70 x 70 x 12mm 2.4 °C/W @ 400 lfm, 4.3 °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 867-0931
製造零件編號SF-06-200-S
BrandSPREADFAST
HK$79.18
單位
- 200mm - - 6 x 200mm - - 6mm - - - Copper - SF
RS庫存編號 867-0953
製造零件編號SF-10-150-S
BrandSPREADFAST
HK$101.12
單位
- 150mm - - 10 x 150mm - - 10mm - - - Copper - SF
RS庫存編號 123-5628
製造零件編號SF-CHS-131306-PC
BrandSPREADFAST
HK$7.724
/個 (每包:5個)
單位
- 13mm 13mm 6mm 13 x 13 x 6mm 33.4 °C/W @ 400 lfm, 58.9 °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 867-0966
製造零件編號SF-12-150-S
BrandSPREADFAST
HK$191.00
單位
- 150mm - - 12 x 150mm - - 12mm - - - Copper - SF
RS庫存編號 123-5635
製造零件編號SF-CHS-313110-PC
BrandSPREADFAST
HK$22.208
/個 (每包:5個)
單位
- 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