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. 169-2307
Mfr. Part No.SP400-0.007-AC-104
BrandBergquist
PHP46.267
Each (In a Pack of 50)
units
25.4 x 19.05mm 0.178mm 25.4mm 19.05mm - 0.9W/m·K Fibreglass Yes -60°C +180°C Shore A 85 Sil-Pad 400 - -60 → +180 °C
RS Stock No. 491-4161
Mfr. Part No.GP3000S30-0.040-02-00-100X100
BrandBergquist
PHP2,258.43
Each
units
100 x 100mm 0.04in 100mm 100mm - 3W/m·K Gap Pad 3000S30 Yes -60°C +200°C Shore OO 30 Gap Pad 3000S30 - -60 → +200 °C
RS Stock No. 712-3964
Mfr. Part No.EYGA121807V
BrandPanasonic
PHP3,187.91
Each
units
180 x 115mm 0.07mm 180mm 115mm - 1000W/m·K Graphite Yes - - - - - -
RS Stock No. 880-1937
Mfr. Part No.ILA-TIM-PETUNIA-2A
PHP339.345
Each (In a Pack of 2)
units
- 0.16mm - - - - Graphite Yes -240°C +300°C Shore A 90 TIM Cream -240 → +300 °C
RS Stock No. 712-3927
Mfr. Part No.EYGA091207PA
BrandPanasonic
PHP1,624.79
Each
units
115 x 90mm 0.07mm 115mm 90mm - 1000W/m·K Graphite Yes - - - - - -
RS Stock No. 915-6098
BrandRS PRO
PHP1,459.61
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. 794-3998
BrandRS PRO
PHP617.04
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. 707-4663
BrandRS PRO
PHP1,279.22
Each
units
150 x 150mm 2mm 150mm 150mm - 3.2W/m·K - Yes -40°C +200°C Shore A 20 - Grey -40 → +200 °C
RS Stock No. 707-4667
BrandRS PRO
PHP2,403.68
Each
units
150 x 150mm 2.5mm 150mm 150mm - 3.2W/m·K - Yes -40°C +200°C Shore A 20 - Grey -40 → +200 °C
RS Stock No. 135-9704
Mfr. Part No.EYGS1010ZLME
BrandPanasonic
PHP1,488.27
Each
units
98 x 98mm 0.2mm 98mm 98mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 135-9316
Mfr. Part No.EYGS1216ZLWD
BrandPanasonic
PHP1,524.90
Each (In a Bag of 10)
units
160 x 120mm 0.2mm 160mm 120mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 712-4015
Mfr. Part No.EYGA121803V
BrandPanasonic
PHP2,086.05
Each
units
180 x 115mm 0.025mm 180mm 115mm - 1600W/m·K Graphite Yes - - - - - -
RS Stock No. 712-3923
Mfr. Part No.EYGA121807A
BrandPanasonic
PHP1,873.10
Each
units
180 x 115mm 0.07mm 180mm 115mm - 1000W/m·K Graphite Yes - - - - - -
RS Stock No. 135-9674
Mfr. Part No.EYGS0606ZLSL
BrandPanasonic
PHP539.94
Each
units
61.5 x 58mm 0.2mm 61.5mm 58mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 752-4806
Mfr. Part No.GP1000SF-0.020-02-00-100x100
BrandBergquist
PHP1,262.89
Each
units
100 x 100mm 0.02in 100mm 100mm - 0.9W/m·K Polymer Yes -60°C +125°C Shore OO 40 - - -60 → +125 °C
RS Stock No. 859-7622
Mfr. Part No.ILA-TIM-STAR-0A
PHP74.818
Each (In a Pack of 8)
units
- 0.25mm - - - 5 W/m·K, 240 W/m·K Graphite No -240°C +300°C Shore A 85 TIM - -240 → +300 °C
RS Stock No. 135-9354
Mfr. Part No.EYGS1116ZLSC
BrandPanasonic
PHP1,640.188
Each (In a Bag of 10)
units
158 x 112mm 0.2mm 158mm 112mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 722-6836
Mfr. Part No.WLFT 404 D 23
PHP153.97
Each
units
- 0.127mm - - 23mm 0.37W/m·K Polyamide Yes -30°C +125°C - - - -30 → +125 °C
RS Stock No. 707-4594
BrandRS PRO
PHP1,008.04
Each
units
150 x 150mm 0.8mm 150mm 150mm - 2.2W/m·K - Yes -40°C +200°C Shore A 10 - Red -40 → +200 °C
RS Stock No. 135-9706
Mfr. Part No.EYGS1014ZLDB
BrandPanasonic
PHP1,827.03
Each
units
138 x 98mm 0.2mm 138mm 98mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C