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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RS Stock No. 750-0881
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BGA STD 015
THB173.39
1 Bag of 5
Bag(s)
BGA 14mm 14mm 10mm 14 x 14 x 10mm 26.5K/W Adhesive Foil - Black - - - - -
RS Stock No. 750-0888
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BGA STD 010
THB266.89
1 Bag of 5
Bag(s)
BGA 13mm 13.5mm 10mm 13 x 13.5 x 10mm 27K/W Adhesive Foil - Black - - - - -
RS Stock No. 903-3100
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.177AB1000B
THB1,743.40
Each
Units
- 100mm 300mm 83mm 100 x 300 x 83mm 0.12°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 903-3144
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.180AB1000B
THB2,259.63
Each
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- 100mm 215mm 77mm 100 x 215 x 77mm 0.14°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 789-8560
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.150AB1000B
THB594.81
Each
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- 100mm 96mm 40mm 100 x 96 x 40mm 1.4°C/W Clamp - Black - - - - -
RS Stock No. 903-3103
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.177AB1500B
THB2,632.93
Each
Units
- 150mm 300mm 83mm 150 x 300 x 83mm 0.09°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 903-3150
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.113AB1000B
THB688.35
Each
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- 100mm 150mm 25mm 100 x 150 x 25mm 0.54°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 903-3084
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.109AB2000B
THB632.62
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- 200mm 100mm 15mm 200 x 100 x 15mm 0.48°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 903-3087
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.109AB1000B
THB325.50
Each
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- 100mm 100mm 15mm 100 x 100 x 15mm 0.83°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 789-8582
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PPL0500B
THB139.02
Each
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TO-220 50mm 50mm 28mm 50 x 50 x 28mm 5°C/W Screw - Black - - - - -
RS Stock No. 903-3090
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.122AB2000B
THB851.76
Each
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- 200mm 200mm 15mm 200 x 200 x 15mm 0.23°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 903-3166
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.153AB1000B
THB385.52
Each
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- 100mm 66mm 40mm 100 x 66 x 40mm 0.69°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 903-3179
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.132AB2000B
THB1,603.19
Each
Units
- 200mm 250mm 30mm 200 x 250 x 30mm 0.14°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 789-8589
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.173AB3000B
THB2,213.25
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- 300mm 119mm 65mm 300 x 119 x 65mm 0.48°C/W - - Black - - - - -
RS Stock No. 903-3153
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.113AB1500B
THB804.57
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- 150mm 150mm 25mm 150 x 150 x 25mm 0.39°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 789-8586
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PPL0750B
THB176.77
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TO-220 75mm 50mm 28mm 75 x 50 x 28mm 3.7°C/W Screw - Black - - - - -
RS Stock No. 400-062
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.193AB2500B
THB2,328.45
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- 250mm 240mm 46mm 250 x 240 x 46mm 0.32K/W - - Black - - - - -
RS Stock No. 903-3147
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.180AB1500B
THB2,536.52
Each
Units
- 150mm 215mm 77mm 150 x 215 x 77mm 0.1°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 903-3096
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.122AB1500B
THB756.13
Each
Units
- 150mm 200mm 15mm 150 x 200 x 15mm 0.29°C/W PCB Mount - - High Power Semiconductor Device, Optoelectronic Device Anodized Aluminium - 100
RS Stock No. 234-2299
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LS140
THB66.27
Each
Units
TO-220 38mm 28mm 22mm 38 x 28 x 22mm 9.9°C/W Clip, Screw - Black - - - - -