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 780-5925
製造零件編號ILA-HSINK-STAR-50X40MM-SVR-K
HK$168.74
單位
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 40mm 50 (Dia.) x 40mm - Screw 50mm Silver - - - LED -
RS庫存編號 780-5953
製造零件編號ILA-HSINK-70X70X55MM-BLK-K
HK$229.72
單位
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 16, Oslon 4, Oslon 9, Stanley 1, Stanley 4 70mm 70mm 55mm 70 x 70 x 55mm - Screw - Black - - - LED -
RS庫存編號 780-5893
製造零件編號ILA-HSINK-STAR-50X20MM-BLK-K
HK$122.19
單位
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 20mm 50 (Dia.) x 20mm - Screw 50mm Black - - - LED -
RS庫存編號 912-5004
製造零件編號ILA-HSNK-190x90x50mm-BLK
HK$442.73
單位
- 190mm 90mm 50mm - - - - - - - - LED Array -
RS庫存編號 780-5962
製造零件編號ILA-HSINK-78X46X25MM-BLK-K
HK$163.82
單位
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 16, Oslon 4, Oslon 9, Stanley 1, Stanley 4 78mm 46mm 25mm 78 x 46 x 25mm - Screw - Black - - - LED -
RS庫存編號 780-5966
製造零件編號ILA-HSINK-78X46X25MM-BLU-K
HK$129.56
單位
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 16, Oslon 4, Oslon 9, Stanley 1, Stanley 4 78mm 46mm 25mm 78 x 46 x 25mm - Screw - Blue - - - LED -
RS庫存編號 880-1943
製造零件編號ILA-EXTRUSION-01-0150.
HK$31.198
/個 (每包:5個)
單位
Duris P5 150mm 24mm 18.9mm - - - - - - - - LED -
RS庫存編號 780-5906
製造零件編號ILA-HSINK-STAR-50X20MM-RED-K
HK$122.18
單位
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 20mm 50 (Dia.) x 20mm - Screw 50mm Red - - - LED -
RS庫存編號 780-5938
製造零件編號ILA-HSINK-STAR-50X80MM-BLK-K
HK$261.75
單位
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 Black - - - LED -
RS庫存編號 920-9423
製造零件編號ILA-HSINK-RADL-100X80MM-BLK
HK$298.93
單位
SCOB - - 80mm - - - 100mm - - - - LED -
RS庫存編號 780-5944
製造零件編號ILA-HSINK-STAR-50X80MM-SVR-K
HK$236.78
單位
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 Silver - - - LED -
RS庫存編號 877-6960
製造零件編號ILK-LINEXT-1099-001.
HK$969.69
單位
- 1.099m 40mm 24.6mm - - - - - - - - LED Array -
RS庫存編號 780-5975
製造零件編號ILA-HSINK-78X46X25MM-RED-K
HK$150.32
單位
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 16, Oslon 4, Oslon 9, Stanley 1, Stanley 4 78mm 46mm 25mm 78 x 46 x 25mm - Screw - Red - - - LED -
RS庫存編號 780-5940
製造零件編號ILA-HSINK-STAR-50X80MM-RED-K
HK$190.00
單位
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庫存編號 780-5922
製造零件編號ILA-HSINK-STAR-50X60MM-BLU-K
HK$189.22
單位
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 60mm 50 (Dia.) x 60mm - Screw 50mm Blue - - - LED -
RS庫存編號 780-5880
製造零件編號ILA-HSINK-280X190X50MM-BLK-K
HK$1,451.74
單位
Dragon 72, Oslon 72 280mm 190mm 50mm 280 x 50 x 190mm - Screw - Black - - - LED -
RS庫存編號 920-9427
製造零件編號ILA-HSINK-RADL-120X150MM-BLK
HK$404.34
單位
SCOB - - 150mm - - - 120mm - - - - LED -
RS庫存編號 920-9439
製造零件編號ILA-HSINK-RADL-70X20MM-BLK
HK$132.82
單位
SCOB - - 20mm - - - 70mm - - - - LED -
RS庫存編號 780-5934
製造零件編號ILA-HSINK-STAR-50X60MM-SVR-K
HK$215.07
單位
Dragon 1, Duris 1, Duris 4, Oslon 1, Oslon 4, Stanley 1, Stanley 4 - - 60mm 50 (Dia.) x 60mm - Screw 50mm Silver - - - LED -
RS庫存編號 920-9420
製造零件編號ILA-HSINK-RADL-100X65MM-BLK
HK$232.59
單位
SCOB - - 65mm - - - 100mm - - - - LED -