TP400 Series Thermal Pad

TP400 elevates the thermal performance bar, achieving 4.0W/m.K while maintaining a hardness of 55 (shore 00). The low hardness in comparison to thermal conductivity proves that TP400 will meet the demands of your challenging design requirements.
Features: Thermal conductivity: 4.0W/m.K, low silicone oil extraction
Applications: Industrial: LEDs, power supplies and conversion
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Technical Data



Test Method

Composition Ceramic Filler + Silicone -
Color Purple Visual
Thickness (mm) 1.0 ~ 10.0 ASTM D374
Density (g/cc) 3.1 ASTM D792

Hardness (shore oo)

55 ASTM D2240
Usage Temperature (℃) -60 ~ 200 -


Breakdown Voltage (kv/mm) >6.0 ASTM D149
Dielectric Constant <7.5 ASTM D150
Volume Resistivity (Ω.cm) 1013 ASTM D257
Flammability V-0 UL 94


Thermal Conductivity (W/m.K) 4.0 ISO 22007-2

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The technical information and data shown on this page should be considered representative or typical only and should not be used for specification purposes. Please contact us representative to determine product availability.

* Thermal Pad Product Reminder

Standard Sheet Size

200x400mm or custom die cut parts.

Thickness available in 0.25mm increments.


Store in a cool, dry, well-ventilated place.

Shelf life

Shelf life of the product is 12 months after date of shipment.