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 Stock No. 867-9039
Mfr. Part No.RPI-COOLINGKIT.9
PHP310.84
Each
units
Banana Pi BPI-M1, Banana Pi BPI-M1+, Banana Pi BPI-M2 Berry, Banana Pi BPI-M2+, Raspberry Pi® 2 B, Raspberry Pi® 3 A+, Raspberry Pi® 3 B, Raspberry Pi® 3 B+, Raspberry Pi® 4 B, Raspberry Pi® A, Raspberry Pi® A+, Raspberry Pi® B, Raspberry Pi® B+ 8.5 mm, 19 mm 6.35 mm, 19 mm 5mm - - - - Black - - - - -
RS Stock No. 674-4756
Mfr. Part No.ICK BGA 14x14x10
PHP49.10
Each
units
BGA 14mm 14mm 10mm 14 x 14 x 10mm 27.4K/W Adhesive Foil, Conductive Foil - Black - - - BGA -
RS Stock No. 189-9255
Mfr. Part No.FK213SA32
PHP57.30
Each
units
- 18mm 25.4mm 13mm 18 x 25.4 x 13mm 21K/W Screw - Black - - - SOT-32 -
RS Stock No. 722-6915
Mfr. Part No.SK 487/37,5 SA
PHP235.79
Each
units
TO-220, TO-247 37.5mm 52.3mm 28mm 37.5 x 52.3 x 28mm 5K/W Clip - Black - - - - -
RS Stock No. 698-8098
Mfr. Part No.ICK BGA 14x14
PHP96.51
Each
units
Universal Square Alu 14mm 14mm 6mm 14 x 14 x 6mm 29K/W Adhesive Foil, Conductive Foil - Black - - - BGA -
RS Stock No. 750-0888
Mfr. Part No.BGA STD 010
PHP701.50
1 Bag of 5
Bag(s)
BGA 13mm 13.5mm 10mm 13 x 13.5 x 10mm 27K/W Adhesive Foil - Black - - - BGA -
RS Stock No. 189-9003
Mfr. Part No.ICK14/16B
PHP52.14
Each
units
Universal Rectangular Alu 6.3mm 19mm 4.8mm 6.3 x 19 x 4.8mm 50K/W - - Black - - - DIL-IC -
RS Stock No. 221-2097
Mfr. Part No.SK409-25,4STC
PHP132.91
Each
units
- 25.4mm 45mm 12.7mm 25.4 x 45 x 12.7mm 8.2K/W Clip - Black - - - - -
RS Stock No. 268-105
Mfr. Part No.400020
PHP67.702
Each (In a Pack of 5)
units
- 19mm 22mm 19mm 11 x 22 x 19mm 23°C/W PCB Through Hole - - - - - TO-220 -
RS Stock No. 492-165
Mfr. Part No.00C855802B
PHP136.18
Each
units
Universal Square Alu 26mm 26mm 12mm 26 x 26 x 12mm 10.8K/W Wire Clip - - - - Aluminium BGA -
RS Stock No. 189-9132
Mfr. Part No.FK231SA220
PHP54.90
Each
units
- 19mm 13.5mm 9.5mm 19 x 13.5 x 9.5mm 24K/W Screw - Black - - - TO-220 -
RS Stock No. 189-8145
Mfr. Part No.SK129-38,1-STS-220
PHP199.37
Each
units
- 38.1mm 42mm 25mm 38.1 x 42 x 25mm 5K/W Clip - Black - - - - -
RS Stock No. 189-8274
Mfr. Part No.SK92-100-SA
PHP690.80
Each
units
Universal Square Alu 100mm 100mm 40mm 100 x 100 x 40mm 1K/W - - Black - - - - -
RS Stock No. 263-251
BrandRS PRO
PHP63.267
Each (In a Pack of 10)
units
TO-220 20mm 35mm 20mm 20 x 35 x 20mm 17.9°C/W - - - - - Aluminium TO-220 -
RS Stock No. 234-2362
Mfr. Part No.PPD0380P
PHP133.07
Each
units
- 38mm 35mm 25mm 38 x 35 x 25mm 7°C/W Clip - Black - - - - -
RS Stock No. 467-551
Mfr. Part No.CMBA054949
BrandMalico
PHP1,032.10
Each
units
- 37.5mm 37.5mm 33mm 37.5 x 37.5 x 33mm 2.5K/W Screw - - - - - BGA -
RS Stock No. 123-5631
Mfr. Part No.SF-CHS-191906-PC
BrandSPREADFAST
PHP68.40
Each (In a Pack of 5)
units
Universal Square Ceramic 19mm 19mm 6mm 19 x 19 x 6mm 20.3 °C/W @ 400 lfm, 38.7 °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. 403-162
Mfr. Part No.437856
PHP94.10
Each (In a Pack of 10)
units
- 25mm 12.5mm 25mm 12.5 x 34.5 x 25mm 11.4K/W Solder - Black - - - TO-218, TO-220, TO-247 -
RS Stock No. 903-3166
Mfr. Part No.153AB1000B
PHP704.26
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. 123-5629
Mfr. Part No.SF-CHS-151506-PC
BrandSPREADFAST
PHP53.20
Each (In a Pack of 5)
units
Universal Square Ceramic 15mm 15mm 6mm 15 x 15 x 6mm 29.5 °C/W @ 400 lfm, 52.5 °C/W @ 100 lfm Adhesive, Screw - White Chipset, Cooling, IC Cooling, LED, Metal Heat Sink Replacement, Power Modules - - - Ceramic Heat Spreader Circular Pin Fin
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