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庫存編號 707-3355
製造零件編號SPK6-0.006-00-54
BrandBergquist
HK$4.473
/個 (每包:10個)
單位
19.05 x 12.7mm 0.152mm 19.05mm 12.7mm - 1.1W/m·K Thin Film Polyimide - -60°C +180°C Shore A 90 Sil-Pad K6 - -60 → +180 °C
RS庫存編號 491-4149
製造零件編號GP2000S40-0.080-02-0816
BrandBergquist
HK$1,917.42
單位
8 x 16in 0.08in 8in 16in - 2W/m·K Gap Pad 2000S40 Yes -60°C +200°C Shore OO 30 Gap Pad 2000S40 - -60 → +200 °C
RS庫存編號 169-2341
製造零件編號SP2000-0.015-00-054
BrandBergquist
HK$8.082
/個 (每包:10個)
單位
19.05 x 12.7mm 0.015in 19.05mm 12.7mm - 3.5W/m·K Fibreglass - -60°C +200°C Shore A 90 Sil-Pad 2000 - -60 → +200 °C
RS庫存編號 169-2183
製造零件編號SP400-0.007-00-05
BrandBergquist
HK$3.456
/個 (每包:50個)
單位
41.91 x 28.96mm 0.178mm 41.91mm 28.96mm - 0.9W/m·K Fibreglass - -60°C +180°C Shore A 85 Sil-Pad 400 - -60 → +180 °C
RS庫存編號 169-2206
製造零件編號SP400-0.007-00-50
BrandBergquist
HK$1.907
/個 (每包:50個)
單位
11.1 x 7.92mm 0.178mm 11.1mm 7.92mm - 0.9W/m·K Fibreglass - -60°C +180°C Shore A 85 Sil-Pad 400 - -60 → +180 °C
RS庫存編號 758-0926
BrandRS PRO
HK$6.733
/個 (每包:10個)
單位
16.5 x 15.9mm 0.2mm 16.5mm 15.9mm - 1.8W/m·K - - -45°C +200°C - - Red -45 → +200 °C
RS庫存編號 758-0948
BrandRS PRO
HK$20.379
/個 (每包:10個)
單位
49.1 x 29.7mm 0.2mm 49.1mm 29.7mm - 1.8W/m·K - - -45°C +200°C - - Red -45 → +200 °C
RS庫存編號 122-5184
製造零件編號ILA-TIM-LES09-2A
HK$28.153
/個 (每包:4個)
單位
13.5 x 13.5mm 0.16mm 13.5mm 13.5mm - - Graphite Yes - - - TIM Grey -
RS庫存編號 169-2357
製造零件編號SP2000-0.015-00-05
BrandBergquist
HK$30.97
/個 (每包:10個)
單位
41.91 x 28.96mm 0.015in 41.91mm 28.96mm - 3.5W/m·K Fibreglass - -60°C +200°C Shore A 90 Sil-Pad 2000 - -60 → +200 °C
RS庫存編號 446-493
製造零件編號U021041-15-U1
HK$55.60
單位
100 x 100mm 2mm 100mm 100mm - 1.2W/m·K Ceramic Filled Silicone Rubber Yes -40°C +160°C Shore OO 27 - - -40 → +160 °C
RS庫存編號 707-4720
BrandRS PRO
HK$94.41
單位
150 x 150mm 0.45mm 150mm 150mm - 1.4W/m·K - - -40°C +200°C Shore A 80 - Yellow -40 → +200 °C
RS庫存編號 859-7622
製造零件編號ILA-TIM-STAR-0A
HK$11.585
/個 (每包:8個)
單位
- 0.25mm - - - 5 W/m·K, 240 W/m·K Graphite No -240°C +300°C Shore A 85 TIM - -240 → +300 °C
RS庫存編號 169-2177
製造零件編號SP400-0.007-00-54
BrandBergquist
HK$2.093
/個 (每包:50個)
單位
19.05 x 12.7mm 0.178mm 19.05mm 12.7mm - 0.9W/m·K Fibreglass - -60°C +180°C Shore A 85 Sil-Pad 400 - -60 → +180 °C
RS庫存編號 169-2127
製造零件編號QII-0.006-AC-104
BrandBergquist
HK$7.063
/個 (每包:50個)
單位
25.4 x 19mm 0.152mm 25.4mm 19mm - 2.5W/m·K Q-Pad II Yes -60°C +180°C Shore A 93 Q-Pad II - -60 → +180 °C
RS庫存編號 362-9654
製造零件編號HF625-0.005-AC-54
BrandBergquist
HK$7.954
/個 (每包:50個)
單位
19.05 x 12.7mm 0.127mm - - - 0.5W/m·K Hi-Flow 625 Yes -30°C +150°C - Hi-Flow 625 - -30 → +150 °C
RS庫存編號 882-0228
製造零件編號GCS-017-P10A10
HK$526.29
單位
225 x 225mm 0.017mm 225mm 225mm - 1750W/m·K Graphite Yes - - - - - -
RS庫存編號 794-3991
BrandRS PRO
HK$103.17
單位
150 x 150mm 0.8mm 150mm 150mm - 10W/m·K Graphite Yes -50°C +150°C Shore A 80 - Black -50 → +150 °C
RS庫存編號 794-3985
BrandRS PRO
HK$102.28
單位
150 x 150mm 0.5mm 150mm 150mm - 10W/m·K Graphite Yes -50°C +150°C Shore A 80 - Black -50 → +150 °C
RS庫存編號 127-007
製造零件編號GP1500-0.020-02-0804
BrandBergquist
HK$345.99
單位
8 x 4in 0.02in 8in 4in - 1.5W/m·K Gap Pad 1500 Yes -60°C +200°C Shore OO 40 Gap Pad 1500 - -60 → +200 °C
RS庫存編號 707-4758
BrandRS PRO
HK$375.23
單位
150 x 150mm 1mm 150mm 150mm - 4W/m·K Gel - -45°C +200°C Shore OO 40 - Blue -45 → +200 °C