Thermal Pads

Thermal pads or thermal gap pads are materials that provide a thermal interface between heatsinks (devices or substances for absorbing unwanted or excess heat) and electronic devices. A thermal pad is particularly useful where air gaps, rough surface textures or uneven surface topography prevent the use of traditional grease or paste. Pads are often self adhesive and  less messy and easier to install than thermal paste.

RS Components have an extensive range of products designed for the heating or cooling of electronic devices to help maintain the right temperature in order to work effectively.

How do thermal pads work?

By keeping the internal components of electronic products from wear and tear resulting from high circuit board temperatures, thermal pads help to provide extended longevity. They are also important in providing safety by eliminating the possibility of electrical fires. Thermal pads become soft at high temperatures which means they can fill imperfections in the surface for better conduction qualities and to minimise potential damage to components. They are manufactured in a variety of standard thicknesses and dimensions but can also be custom fabricated to fit various applications.,/p>

Typical Applications

Thermal pads and thermal paste both work in the same way by transferring heat from hot areas of a circuit board into a heatsink. They are often used on the following to provide better heat transfer.

  • Flat panel displays
  • LED (light emitting diode) displays
  • Engine control units
  • Computer hard drives, CPU
  • Wireless communication hardware

Does thermal pad thickness matter?

A greater thickness allows the pad to absorb more deformations in the heatsink surface . However a thicker thermal pad is worse in regarding to heat transfer.

Can you reuse thermal pads?

Unlike thermal paste, thermal pads can be reused so long as the pad is clean and has not been moved, touched, damaged or stretched.


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Description Price Dimensions Thickness Length Width Diameter Thermal Conductivity Material Self-Adhesive Minimum Operating Temperature Maximum Operating Temperature Hardness Material Trade Name Colour Operating Temperature Range
RS Stock No. 712-3914
Mfr. Part No.EYGS121807
BrandPanasonic
PHP1,062.29
Each
units
180 x 115mm 0.07mm 180mm 115mm - 1000W/m·K Graphite - - - - - - -
RS Stock No. 135-9665
Mfr. Part No.EYGS0404ZLMP
BrandPanasonic
PHP178.19
Each
units
38 x 36mm 0.2mm 38mm 36mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 707-4746
BrandRS PRO
PHP2,839.15
Each
units
150 x 150mm 2mm 150mm 150mm - 2W/m·K Gel - -45°C +200°C Shore OO 30 - White -45 → +200 °C
RS Stock No. 707-4648
BrandRS PRO
PHP2,117.95
Each
units
150 x 150mm 2.5mm 150mm 150mm - 1.95W/m·K - Yes -40°C +200°C Shore A 5 - Yellow -40 → +200 °C
RS Stock No. 135-9323
Mfr. Part No.EYGS1113ZLMB
BrandPanasonic
PHP1,524.90
Each (In a Bag of 10)
units
132 x 106mm 0.2mm 132mm 106mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 169-4656
Mfr. Part No.SPK10-0.006-AC-104
BrandBergquist
PHP119.873
Each (In a Pack of 10)
units
25.4 x 19.05mm 0.152mm 25.4mm 19.05mm - 1.3W/m·K Thin Film Polyimide Yes -60°C +180°C Shore A 90 Sil-Pad K10 - -60 → +180 °C
RS Stock No. 174-5696
BrandRS PRO
PHP712.62
Each
units
300 x 200 x 0.5mm 0.5mm 300mm 200mm - 2.8W/m·K Silicone Yes -60°C +200°C 50 Shore OO - Grey -60 → +200 °C
RS Stock No. 752-4840
Mfr. Part No.GP2200SF-0.020-02-00-100x100
BrandBergquist
PHP1,663.34
Each
units
100 x 100mm 0.02in 100mm 100mm - 2W/m·K Gap Pad 2200SF Yes -60°C +125°C Shore OO 70 Gap Pad 2200SF - -60 → +125 °C
RS Stock No. 707-4657
BrandRS PRO
PHP1,122.84
Each
units
150 x 150mm 1mm 150mm 150mm - 3.2W/m·K - Yes -40°C +200°C Shore A 20 - Grey -40 → +200 °C
RS Stock No. 135-9697
Mfr. Part No.EYGS1316ZLAC
BrandPanasonic
PHP2,480.23
Each
units
163 x 125mm 0.2mm 163mm 125mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 135-9655
Mfr. Part No.EYGS1012ZLSH
BrandPanasonic
PHP1,815.50
Each
units
121 x 104.5mm 0.2mm 121mm 104.5mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 135-9711
Mfr. Part No.EYGS0612ZLSG
BrandPanasonic
PHP770.70
Each
units
124 x 61.5mm 0.2mm 124mm 61.5mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 122-5189
Mfr. Part No.ILA-TIM-LES23-1A
PHP143.69
Each (In a Pack of 4)
units
28 x 28mm 0.25mm 28mm 28mm - - Graphite Yes - - - TIM Pewter -
RS Stock No. 707-4783
BrandRS PRO
PHP6,597.13
Each
units
150 x 150mm 1mm 150mm 150mm - 12W/m·K Gel - -45°C +200°C Shore OO 60 - Grey -45 → +200 °C
RS Stock No. 188-9451
Mfr. Part No.GCSP-040P10A10G-150x300
PHP1,163.69
Each
units
150 x 300mm 0.06mm 150mm 300mm - 15W/m·K Graphite Yes -40°C +400°C 85 Shore A - Grey -40 → +400 °C
RS Stock No. 906-2741
Mfr. Part No.ILA-TIM-CLUSTER-25X25-1A
PHP125.245
Each (In a Pack of 4)
units
25 x 25mm 0.25mm 25mm 25mm - 5 W/mK, 240 W/mK Graphite Yes -240°C +300°C Shore A 85 - Pewter -
RS Stock No. 127-063
Mfr. Part No.SP1500ST-0.008-02-1012
BrandBergquist
PHP8,624.22
Each
units
10 x 12in 0.203mm 10in 12in - 1.8W/m·K Fibreglass Yes -60°C +180°C Shore OO 75 Sil-Pad 1500ST - -60 → +180 °C
RS Stock No. 135-9695
Mfr. Part No.EYGS0608ZLMK
BrandPanasonic
PHP712.15
Each
units
78 x 55mm 0.2mm 78mm 55mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 915-6048
BrandRS PRO
PHP1,191.29
Each
units
150 x 150mm 0.5mm 150mm 150mm - 4W/m·K Silicone - -55°C +200°C Shore OO 40 - Blue -55 → +200 °C
RS Stock No. 122-5183
Mfr. Part No.ILA-TIM-LES09-1A
PHP122.235
Each (In a Pack of 4)
units
13.5 x 13.5mm 0.25mm 13.5mm 13.5mm - - Graphite Yes - - - TIM Pewter -