Thermal Pads

Thermal gap pads are materials that provide a thermal interface between heatsinks (devices or substances for absorbing unwanted or excess heat) and electronic devices. They’re particularly useful where air gaps, rough surface textures or uneven surface topography prevent the use of traditional grease or paste.

How do thermal gap pads work?

By keeping the internal components of electronic products from wear and tear resulting from high circuit board temperatures, thermal gap pads help to provide extended longevity. They’re also important in providing safety by eliminating the possibility of electrical fires. Thermal gap pads are soft and comfortable, which helps to provide vibration and shock damping to minimise potential damage to components. They’re manufactured in a variety of standard thicknesses and dimensions but can also be custom fabricated to fit various applications.

What are thermal gap pads used for?

Typical applications of thermal gap pads include:

  • Flat panel displays
  • LED (light emitting diode) displays
  • Engine control units
  • Computer hard drives
  • Wireless communication hardware

...
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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. 707-3355
Mfr. Part No.SPK6-0.006-00-54
BrandBergquist
$0.763
Each (In a Pack of 10)
units
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 Stock No. 446-493
Mfr. Part No.U021041-15-U1
$12.70
Each
units
101.6 x 101.6mm 2.03mm 101.6mm 101.6mm - 1.2W/m·K Ceramic Filled Silicone Rubber Yes -40°C +160°C Shore OO 27 - - -40 → +160 °C
RS Stock No. 169-2183
Mfr. Part No.SP400-0.007-00-05
BrandBergquist
$0.697
Each (In a Pack of 50)
units
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 Stock No. 794-3973
BrandRS PRO
$16.52
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. 122-5183
Mfr. Part No.ILA-TIM-LES09-1A
$3.39
Each (In a Pack of 4)
units
13.5 x 13.5mm - 13.5mm 13.5mm - - Graphite Yes - - - TIM Pewter -
RS Stock No. 707-4578
BrandRS PRO
$22.89
Each
units
150 x 150mm 1mm 150mm 150mm - 1.6W/m·K - Yes -40°C +200°C Shore A 15 - Grey -40 → +200 °C
RS Stock No. 707-3373
Mfr. Part No.SPK10-0.006-00-104
BrandBergquist
$1.893
Each (In a Pack of 10)
units
25.4 x 19.05mm 0.152mm 25.4mm 19.05mm - 1.3W/m·K Thin Film Polyimide - -60°C +180°C Shore A 90 Sil-Pad K10 - -60 → +180 °C
RS Stock No. 283-3830
Mfr. Part No.SL-012-AL-20
BrandSilfox
$2.896
Each (In a Pack of 10)
units
23 x 20mm 2mm 23mm 20mm - 20W/m·K Ceramic Aluminium Oxide - - +1400°C - - - Maximum of +1400 °C
RS Stock No. 794-3995
BrandRS PRO
$13.53
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. 362-9676
Mfr. Part No.HF625-0.005-AC-104
BrandBergquist
$2.00
Each (In a Pack of 50)
units
25 x 19mm 0.127mm 25mm 19mm - 0.5W/m·K Hi-Flow 625 Yes -30°C +150°C - Hi-Flow 625 - -30 → +150 °C
RS Stock No. 758-0963
BrandRS PRO
$6.048
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. 446-572
Mfr. Part No.U021041-19-U1
$20.46
Each
units
101.6 x 101.6mm 5.08mm 101.6mm 101.6mm - 1.2W/m·K Ceramic Filled Silicone Rubber Yes -40°C +160°C Shore OO 27 - - -40 → +160 °C
RS Stock No. 446-475
Mfr. Part No.U021041-26-U1
$21.41
Each
units
101.6 x 101.6mm 1.016mm 101.6mm 101.6mm - 6W/m·K Boron Nitride Filled Silicone Elastomer - -45°C +200°C Shore OO 70 - - -45 → +200 °C
RS Stock No. 362-9654
Mfr. Part No.HF625-0.005-AC-54
BrandBergquist
$0.887
Each (In a Pack of 50)
units
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 Stock No. 507-5605
Mfr. Part No.SP400-0.007-00-1212
BrandBergquist
$106.68
Each
units
12 x 12in 0.178mm 12in 12in - 0.9W/m·K Fibreglass - -60°C +180°C Shore A 85 Sil-Pad 400 - -60 → +180 °C
RS Stock No. 169-2470
Mfr. Part No.QII-0.006-AC-1212
BrandBergquist
$75.61
Each
units
12 x 12in 0.152mm 12in 12in - 2.5W/m·K Q-Pad II Yes -60°C +180°C Shore A 93 Q-Pad II - -60 → +180 °C
RS Stock No. 498-0225
Mfr. Part No.ST-08-220R/A
BrandBergquist
$0.469
Each (In a Pack of 10)
units
25 x 11mm 0.45mm 25mm 115mm - 0.8W/m·K Silicone - - - - - - -
RS Stock No. 707-3428
Mfr. Part No.GP5000S35-0.040-02-0404
BrandBergquist
$69.19
Each
units
4 x 4in 0.04in 4in 4in - 5W/m·K Gap Pad 5000S35 Yes -60°C +200°C Shore OO 35 Gap Pad 5000S35 - -60 → +200 °C
RS Stock No. 468-2296
Mfr. Part No.GPVOUS-0.125-00-00-100X100
BrandBergquist
$59.94
Each
units
100 x 100mm 0.125in 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. 707-3361
Mfr. Part No.SPK10-0.006-00-54
BrandBergquist
$0.60
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 - -60°C +180°C Shore A 90 Sil-Pad K10 - -60 → +180 °C
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