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. 794-3998
BrandRS PRO
SGD15.09
Each
units
150 x 150mm 0.8mm 150mm 150mm - 13W/m·K Graphite - -50°C +150°C Shore A 80 - Black -50 → +150 °C
RS Stock No. 794-3985
BrandRS PRO
SGD17.06
Each
units
150 x 150mm 0.5mm 150mm 150mm - 10W/m·K Graphite Yes -50°C +150°C Shore A 80 - Black -50 → +150 °C
RS Stock No. 794-3973
BrandRS PRO
SGD17.38
Each
units
150 x 150mm 0.16mm 150mm 150mm - 10W/m·K Graphite Yes -50°C +150°C Shore A 80 - Black -50 → +150 °C
RS Stock No. 794-3982
BrandRS PRO
SGD15.09
Each
units
150 x 150mm 0.5mm 150mm 150mm - 13W/m·K Graphite - -50°C +150°C Shore A 80 - Black -50 → +150 °C
RS Stock No. 794-3991
BrandRS PRO
SGD17.06
Each
units
150 x 150mm 0.8mm 150mm 150mm - 10W/m·K Graphite Yes -50°C +150°C Shore A 80 - Black -50 → +150 °C
RS Stock No. 915-6082
BrandRS PRO
SGD18.92
Each
units
150 x 150mm 0.5mm 150mm 150mm - 2W/m·K Non-Silicone - -40°C +125°C Shore OO 30 - Pink -40 → +125 °C
RS Stock No. 915-6073
BrandRS PRO
SGD55.61
Each
units
150 x 150mm 0.5mm 150mm 150mm - 8W/m·K Silicone - -55°C +200°C Shore OO 60 - Grey -55 → +200 °C
RS Stock No. 915-6058
BrandRS PRO
SGD32.48
Each
units
150 x 150mm 0.5mm 150mm 150mm - 6W/m·K Silicone - -55°C +200°C Shore OO 50 - Red -55 → +200 °C
RS Stock No. 794-3995
BrandRS PRO
SGD12.16
Each
units
150 x 150mm 0.8mm 150mm 150mm - 8W/m·K Graphite - -50°C +150°C Shore A 80 - Black -50 → +150 °C
RS Stock No. 707-4770
BrandRS PRO
SGD158.52
Each
units
150 x 150mm 2mm 150mm 150mm - 6W/m·K Gel - -45°C +200°C Shore OO 50 - Red -45 → +200 °C
RS Stock No. 707-4774
BrandRS PRO
SGD115.64
Each
units
150 x 150mm 0.5mm 150mm 150mm - 12W/m·K Gel - -45°C +200°C Shore OO 60 - Grey -45 → +200 °C
RS Stock No. 707-4727
BrandRS PRO
SGD13.02
Each
units
150 x 150mm 0.3mm 150mm 150mm - 1.4W/m·K - - -40°C +200°C Shore A 80 - Yellow -40 → +200 °C
RS Stock No. 915-6098
BrandRS PRO
SGD32.60
Each
units
150 x 150mm 0.5mm 150mm 150mm - 4W/m·K Non-Silicone - -40°C +125°C Shore OO 30 - Blue -40 → +125 °C
RS Stock No. 707-4654
BrandRS PRO
SGD30.18
Each
units
150 x 150mm 0.8mm 150mm 150mm - 3.2W/m·K - Yes -40°C +200°C Shore A 20 - Grey -40 → +200 °C
RS Stock No. 915-6032
BrandRS PRO
SGD26.97
Each
units
150 x 150mm 1mm 150mm 150mm - 3.5W/m·K Fibreglass - -55°C +200°C Shore OO 20 - Blue -55 → +200 °C
RS Stock No. 707-4617
BrandRS PRO
SGD52.17
Each
units
150 x 150mm 3mm 150mm 150mm - 2.2W/m·K - Yes -40°C +200°C Shore A 10 - Red -40 → +200 °C
RS Stock No. 707-4685
BrandRS PRO
SGD73.63
Each
units
150 x 150mm 2mm 150mm 150mm - 4W/m·K - Yes -40°C +200°C Shore A 25 - Grey -40 → +200 °C
RS Stock No. 758-0963
BrandRS PRO
SGD7.012
Each (In a Pack of 5)
units
65.2 x 47.5mm 0.2mm 65.2mm 47.5mm - 1.8W/m·K - - -45°C +200°C - - Red -45 → +200 °C
RS Stock No. 707-4575
BrandRS PRO
SGD20.42
Each
units
150 x 150mm 0.8mm 150mm 150mm - 1.6W/m·K - Yes -40°C +200°C Shore A 15 - Grey -40 → +200 °C
RS Stock No. 909-2064
BrandRS PRO
SGD6.698
Each (In a Pack of 10)
units
90 x 72.5mm 0.127mm 90mm 72.5mm - 2.5W/m·K - No -45°C +125°C - - Grey -45 → +125 °C