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. 203-583
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK 481/ 50/ SA
THB128.458
Each: (In a Pack of 10)
Units
- 50mm 30mm 45mm 50 x 30 x 45mm 4.2K/W Clip - Black - - - - -
RS Stock No. 903-3084
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.109AB2000B
THB564.46
Each
Units
Universal Rectangular Alu 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. 893-5617
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.C40-058-VE
Brand :Ohmite
THB163.77
Each
Units
- 58mm 32mm 46.3mm 58 x 32 x 46.3mm - Clip - - - - Aluminium - C40
RS Stock No. 485-8875
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.PF720
THB21.54
Each: (In a Pack of 10)
Units
- 19.84mm 8.1mm 20mm 19.84 x 8.1 x 20mm 28.9°C/W PCB Through Hole - - - - - TO-220 -
RS Stock No. 722-6909
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK 574/50 SA
THB122.23
Each
Units
- 50mm 32.3mm 28mm 50 x 32.3 x 28mm 5.5K/W Clip - Black - - - - -
RS Stock No. 903-3103
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.177AB1500B
THB2,829.19
Each
Units
Universal Rectangular Alu 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
THB632.68
Each
Units
Universal Rectangular Alu 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. 789-8560
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.150AB1000B
THB710.50
Each
Units
Universal Rectangular Alu 100mm 96mm 40mm 100 x 96 x 40mm 1.4°C/W Clamp - Black - - - - -
RS Stock No. 203-599
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK 481/ 37,5/ SA
THB112.852
Each: (In a Pack of 10)
Units
- 37.5mm 30mm 45mm 37.5 x 30 x 45mm 5K/W Clip - Black - - - - -
RS Stock No. 722-6906
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK 574/37,5 SA
THB97.97
Each
Units
- 37.5mm 32.3mm 28mm 37.5 x 32.3 x 28mm 6.5K/W Clip - Black - - - - -
RS Stock No. 903-3166
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.153AB1000B
THB414.31
Each
Units
Universal Rectangular Alu 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
THB1,723.15
Each
Units
Universal Rectangular Alu 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. 692-0648
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LA 9 200 230 V
THB4,388.05
Each
Units
Universal Rectangular Alu with fan 200mm 80mm 83mm 200 x 80 x 83mm 0.21K/W - - - - - - - -
RS Stock No. 189-8460
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK64-37,5-SA-1M3
THB206.01
Each
Units
- 37.5mm 70mm 25mm 37.5 x 70 x 25mm 4.1K/W Screw - Black - - - - -
RS Stock No. 893-4932
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RA-T2X-64E
Brand :Ohmite
THB102.95
Each
Units
TBH25, TCH35, TEH100, TEH70 42mm 25mm 63.5mm 42 x 25 x 63.5mm 3.1°C/W Vertical - Black - Black Anodized Aluminium - R
RS Stock No. 123-5640
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SF-CHS-606015-PC
Brand :SPREADFAST
THB276.63
Each
Units
Universal Square Ceramic 60mm 60mm 15mm 60 x 60 x 15mm 2.6 °C/W @ 400 lfm, 4.7 °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 Stock No. 698-8111
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.FK 244 13 D2 PAK
THB46.38
Each: (In a Pack of 5)
Units
- 26mm 13mm 10mm 26 x 13 x 10mm 22.8K/W Solder - Silver - - - - -
RS Stock No. 454-7632
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK89-100KLSSR2+1
THB1,227.36
Each
Units
- 100mm 80mm 78.6mm 100 x 80 x 78.6mm 1K/W - - - - - - - -
RS Stock No. 189-8319
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK95-25-SA-220
THB45.78
Each
Units
- 25mm 12.6mm 6.5mm 25 x 12.6 x 6.5mm 36K/W Screw - Black - - - TO-220 -
RS Stock No. 467-517
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.EBA37.5001-10CL+T710
Brand :Malico
THB254.08
Each
Units
Clip 37.5mm 37.5mm 10mm 37.5 x 37.5 x 10mm 2.9K/W Clip - Black - - - - -
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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.