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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รายละเอียดสินค้า / Description ราคา / Price For Use With Length Width Height Dimensions Thermal Resistance Mounting Diameter Colour Application Finish Material Package Type Series
RS Stock No. 507-5122
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.OS461/B/150
THB967.33
Each
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Universal Rectangular Alu 150mm 100mm 40mm 150 x 100 x 40mm 0.86K/W - - Black - - - - -
RS Stock No. 722-6883
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK 480/84 SA
THB125.88
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- 84mm 28mm 10.3mm 84 x 28 x 10.3mm 8K/W Clip - Black - - - - -
RS Stock No. 504-0750
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ICKSMDF17
THB35.214
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Universal Rectangular Alu 17mm 8mm 6mm 17 x 8 x 6mm 42K/W - - Black - - - DIL-IC -
RS Stock No. 903-3096
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.122AB1500B
THB813.05
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Universal Rectangular Alu 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. 189-8246
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK88-75-SA
THB382.35
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- 75mm 100mm 50mm 75 x 100 x 50mm 1.1K/W - - Black - - - TO-3 -
RS Stock No. 774-2795
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LAM 3 K 75 12
THB1,733.06
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- 75mm 30mm 30mm 75 x 30 x 30mm 1.15K/W PCB Mount - Natural - - - - -
RS Stock No. 189-8482
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK68-100-SA
THB257.24
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- 100mm 46mm 33mm 100 x 46 x 33mm 3K/W Screw - Black - - - TO-220 -
RS Stock No. 712-4260
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ML26AAG
THB23.622
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- 25mm 15mm 20mm 25 x 15 x 20mm 17.9°C/W PCB Through Hole - Black - - - TO-220 -
RS Stock No. 400-056
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.193AB1500B
THB2,108.31
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Universal Rectangular Alu 150mm 240mm 46mm 150 x 240 x 46mm 0.4K/W - - Black - - - - -
RS Stock No. 259-8739
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK89-75KLSSR1
THB888.23
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- 75mm 80mm 78.6mm 75 x 80 x 78.6mm 1.3K/W DIN Rail - Black - Anodized Stainless Steel - -
RS Stock No. 169-4268
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK125 84SA
THB120.90
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- 84mm 30mm 28mm 84 x 30 x 28mm 8.1K/W - - Black - - - TO-220 -
RS Stock No. 722-6912
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK 487/25 SA
THB109.86
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- 25mm 52.3mm 28mm 25 x 52.3 x 28mm 6.5K/W Clip - Black - - - - -
RS Stock No. 123-5624
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SF-CHS-555506F
Brand :SPREADFAST
THB99.81
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Universal Square Ceramic 55mm 55mm 6mm 55 x 55 x 6mm 6.2 °C/W @ 400 lfm, 10.4 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Finned
RS Stock No. 722-6928
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK 487/84 SA
THB227.92
Each
Units
- 84mm 52.3mm 28mm 84 x 52.3 x 28mm 2.5K/W Clip - Black - - - - -
RS Stock No. 903-3147
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.180AB1500B
THB2,725.73
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Universal Rectangular Alu 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. 189-8757
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK01-75-SA
THB178.27
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- 75mm 115mm 26mm 75 x 115 x 26mm 2.5K/W Screw - Black - - - - -
RS Stock No. 674-4769
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ICK BGA 40x40x10
THB55.06
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Universal Square Alu 40mm 40mm 10mm 40 x 40 x 10mm 13.8K/W Adhesive Foil, Conductive Foil - Black - - - BGA -
RS Stock No. 234-2378
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PPD0500P
THB67.75
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- 50mm 35mm 25mm 50 x 35 x 25mm 5.5K/W Clip - Black - - - - -
RS Stock No. 674-4822
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ICK S 36x36x20
THB296.78
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Units
Universal Square Alu 36.4mm 36.4mm 20mm 36.4 x 36.4 x 20mm 3.2K/W Adhesive Foil, Conductive Foil - - - - - - -
RS Stock No. 221-2160
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK75-50-TO220
THB84.84
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Units
- 50mm 32mm 14mm 50 x 32 x 14mm 8.5K/W Screw - Black - - - TO-220 -
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Description:
From Fischer Elektronik, the SK 42 standard extrusion heatsink is made from anodised aluminium in a grilled shape. Extruded heatsinks are the most common form of heatsink and are suitable for a range of medium power applications.