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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Viewing 481 - 486 of 486 products
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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. 468-2303
Mfr. Part No.GPVOUS-0.200-00-00-100X100
100 x 100mm 0.2in 100mm 100mm - 1W/m·K Gap Pad VO Ultra Soft - -60°C +200°C Shore OO 5 Gap Pad VO Ultra Soft - -60 → +200 °C
RS Stock No. 446-481
Mfr. Part No.U021041-24-U1
100 x 100mm 4mm 100mm 100mm - 3W/m·K Boron Nitride Filled Silicone Elastomer Yes -45°C +200°C Shore OO 25 - - -45 → +200 °C
RS Stock No. 135-9657
Mfr. Part No.EYGS0918ZLX2
180 x 90mm 0.2mm 180mm 90mm - 400W/m·K Graphite - -55°C +400°C - - - -55 → +400 °C
RS Stock No. 188-9449
Mfr. Part No.GCSP-040A10G-150x300
150 x 300mm 0.05mm 150mm 300mm - 15W/m·K Graphite Yes -40°C +400°C 85 Shore A - Grey -40 → +400 °C
RS Stock No. 752-4828
Mfr. Part No.GP1000SF-0.020-02-00-200x100
200 x 100mm 0.02in 200mm 100mm - 0.9W/m·K Polymer Yes -60°C +125°C Shore OO 40 - - -60 → +125 °C
RS Stock No. 752-4758
Mfr. Part No.GP2500S20-0.100-02-00-100x100
100 x 100mm 0.1in 100mm 100mm - 2.4W/m·K Gap Pad 2500S20 Yes -60°C +200°C Shore OO 20 Gap Pad 2500S20 - -60 → +200 °C