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. 135-9677
Mfr. Part No.EYGS1516ZLSB
BrandPanasonic
PHP2,047.92
Each
units
158 x 148mm 0.2mm 158mm 148mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 909-2073
BrandRS PRO
PHP956.50
Each
units
150 x 150mm 0.13mm 150mm 150mm - 2.5W/m·K - No -45°C +125°C - - Grey -45 → +125 °C
RS Stock No. 712-4009
Mfr. Part No.EYGA091203M
BrandPanasonic
PHP807.03
Each
units
115 x 90mm 0.025mm 115mm 90mm - 1600W/m·K Graphite Yes - - - - - -
RS Stock No. 752-4792
Mfr. Part No.GP2500S20-0.200-02-00-200x100
BrandBergquist
PHP10,632.23
Each
units
200 x 100mm 0.2in 200mm 100mm - 2.4W/m·K Gap Pad 2500S20 Yes -60°C +200°C Shore OO 20 Gap Pad 2500S20 - -60 → +200 °C
RS Stock No. 707-4607
BrandRS PRO
PHP838.80
Each
units
150 x 150mm 1.2mm 150mm 150mm - 2.2W/m·K - Yes -40°C +200°C Shore A 10 - Red -40 → +200 °C
RS Stock No. 909-2045
BrandRS PRO
PHP57.539
Each (In a Pack of 10)
units
27 x 28mm 0.127mm 27mm 28mm - 2.5W/m·K - No -45°C +125°C - - Grey -45 → +125 °C
RS Stock No. 491-4111
Mfr. Part No.GP2000S40-0.125-02-00-200X100
BrandBergquist
PHP7,561.07
Each
units
200 x 100mm 0.125in 200mm 100mm - 2W/m·K Gap Pad 2000S40 Yes -60°C +200°C Shore OO 30 Gap Pad 2000S40 - -60 → +200 °C
RS Stock No. 909-2051
BrandRS PRO
PHP208.623
Each (In a Pack of 10)
units
65 x 47.5mm 0.127mm 65mm 47.5mm - 2.5W/m·K - No -45°C +125°C - - Grey -45 → +125 °C
RS Stock No. 177-7830
Mfr. Part No.GPVO-0.080-00-0816
BrandBergquist
PHP10,620.11
Each
units
8 x 16in 0.08in 8in 16in - 0.8W/m·K Gap Pad VO - -60°C +200°C Shore OO 40 Gap Pad VO - -60 → +200 °C
RS Stock No. 135-9710
Mfr. Part No.EYGS1212ZLGC
BrandPanasonic
PHP2,090.95
Each
units
120 x 120mm 0.2mm 120mm 120mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °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. 169-4628
Mfr. Part No.SPK10-0.006-AC-54
BrandBergquist
PHP95.816
Each (In a Pack of 10)
units
19.05 x 12.7mm 0.152mm 19.05mm 12.7mm - 1.3W/m·K Thin Film Polyimide Yes -60°C +180°C Shore A 90 Sil-Pad K10 - -60 → +180 °C
RS Stock No. 707-4718
BrandRS PRO
PHP559.01
Each
units
150 x 150mm 0.18mm 150mm 150mm - 1.4W/m·K - - -40°C +200°C Shore A 80 - Yellow -40 → +200 °C
RS Stock No. 794-3985
BrandRS PRO
PHP662.29
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. 915-6032
BrandRS PRO
PHP1,196.87
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. 712-4018
Mfr. Part No.EYGA121803M
BrandPanasonic
PHP2,353.71
Each
units
180 x 115mm 0.025mm 180mm 115mm - 1600W/m·K Graphite Yes - - - - - -
RS Stock No. 915-6086
BrandRS PRO
PHP912.57
Each
units
150 x 150mm 1mm 150mm 150mm - 2W/m·K Non-Silicone - -40°C +125°C Shore OO 30 - Pink -40 → +125 °C
RS Stock No. 446-497
Mfr. Part No.U021041-22-U1
PHP1,772.09
Each
units
100 x 100mm 2.5mm 100mm 100mm - 3W/m·K Boron Nitride Filled Silicone Elastomer Yes -45°C +200°C Shore OO 25 - - -45 → +200 °C
RS Stock No. 188-9445
Mfr. Part No.GCSP-025G-150x300
PHP1,086.70
Each
units
150 x 300mm 0.025mm 150mm 300mm - 15W/m·K Graphite - -40°C +400°C 85 Shore A - Grey -40 → +400 °C
RS Stock No. 752-4825
Mfr. Part No.GP1000SF-0.060-02-00-200x100
BrandBergquist
PHP5,518.67
Each
units
200 x 100mm 0.06in 200mm 100mm - 0.9W/m·K Polymer Yes -60°C +125°C Shore OO 40 - - -60 → +125 °C