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. 234-2564
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LS300
THB24.02
Each
Units
TO-220 36.9mm 44mm 10mm 36.9 x 44 x 10mm 12°C/W Clip, Screw - Black - - - - -
RS Stock No. 674-4703
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK452-37,5SA
THB53.76
Each
Units
TO-218, TO-220, TO-247, TO-248, TO-3P 37.5mm 29mm 25mm 37.5 x 29 x 25mm 11K/W - - Black - - - - -
RS Stock No. 712-4201
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.591202B00000G
THB10.654
Each: (In a Pack of 5)
Units
TO-220, TO-262 12.7mm 14.48mm 15.24mm 12.7 x 14.48 x 15.24mm 26.8°C/W PCB Through Hole - Black - - - - -
RS Stock No. 123-5624
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SF-CHS-555506F
Brand :SPREADFAST
THB99.35
Each
Units
- 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. 221-2160
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK75-50-TO220
THB62.32
Each
Units
TO-220 50mm 32mm 14mm 50 x 32 x 14mm 8.5K/W Screw - Black - - - - -
RS Stock No. 893-4507
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.C220-025-1AE
Brand :Ohmite
THB109.06
Each
Units
TO-220 25mm 19.94mm 38mm 25 x 19.94 x 38mm - Clip - Black - Black Anodized Aluminium - C
RS Stock No. 692-0685
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LAM 4 100 5 V
THB1,801.67
Each
Units
- 100mm 40mm 40mm 100 x 40 x 40mm 1.2K/W - - - - - - - -
RS Stock No. 750-0853
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.BGA FC 015
THB90.12
Each
Units
BGA 40mm 40mm 24mm 40 x 40 x 24mm 11K/W Adhesive Foil - Black - - - - -
RS Stock No. 263-251
Brand :RS PRO
THB40.043
Each: (In a Pack of 10)
Units
TO-220 20mm 35mm 20mm 20 x 35 x 20mm 17.9°C/W - - - - - Aluminium - -
RS Stock No. 698-8094
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ICK PGA 14x14x12
THB90.90
Each
Units
PGA 36mm 36mm 12.3mm 36 x 36 x 12.3mm 9.8K/W Adhesive Foil, Conductive Foil - Black - - - - -
RS Stock No. 692-0694
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.ICK SMD F 10 MI
THB45.174
Each: (In a Pack of 5)
Units
DIP, PLCC 10mm 8mm 6mm 10 x 8 x 6mm 71K/W - - Black - - - - -
RS Stock No. 189-8741
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK01-50-SA
THB96.40
Each
Units
CB, TO-3 50mm 115mm 26mm 50 x 115 x 26mm 3K/W Screw - Black - - - - -
RS Stock No. 123-5625
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SF-CHS-707012F
Brand :SPREADFAST
THB171.13
Each
Units
- 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 Stock No. 893-4939
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.RA-T2X-51E
Brand :Ohmite
THB85.553
Each: (In a Pack of 10)
Units
TBH25 Ohmite Resistor Series, TCH35 Ohmite Resistor Series, TEH100 Ohmite Resistor Series, TEH70 Ohmite Resistor Series, TO-218, TO-220, TO-247 42mm 25mm 50.8mm 42 x 25 x 50.8mm 3.5°C/W Vertical - Black - Black Anodized Aluminium - R
RS Stock No. 774-2827
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.LAM 5 100 12
THB1,154.37
Each
Units
TO-218, TO-220, TO-247, TO-264 100mm 50mm 50mm 100 x 50 x 50mm 0.68K/W PCB Mount - Natural - - - - -
RS Stock No. 712-4305
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.507222B00000G
THB14.18
Each: (In a Pack of 5)
Units
Dual TO-220 37.34mm 44.45mm 9.52mm 44.45 x 9.52 x 37.34mm 9.6°C/W - - Black - Black Anodized - - -
RS Stock No. 189-8094
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK104-25,4-STS-22
THB57.29
Each
Units
TO-220 25.4mm 34.9mm 12.7mm 25.4 x 34.9 x 12.7mm 14K/W Clip - Black - - - - -
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 - - - - -
RS Stock No. 722-6886
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK 481/25 SA
THB70.78
Each
Units
TO-220, TO-247 25mm 30mm 45mm 25 x 30 x 45mm 5.5K/W Clip - Black - - - - -
RS Stock No. 722-6912
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SK 487/25 SA
THB69.85
Each
Units
TO-220, TO-247 25mm 52.3mm 28mm 25 x 52.3 x 28mm 6.5K/W Clip - Black - - - - -
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