Thermally conductive pastes
Here you can access our series in the area of heat-conducting pastes.
Discover nowThermal Pastes for Demanding Electronics
The ongoing miniaturization and increasing power densities in electronics demand excellent thermal management. Thermal Interface Materials (TIMs) are used to maximize component lifespan and prevent failures by ensuring efficient heat dissipation.
As your partner for electronic components, alfatec offers a comprehensive portfolio of high-quality KERATHERM® thermal pastes from KERAFOL®.
Thermal Pastes in Detail: Function & Benefits for Electronics
What are thermal pastes? Thermal pastes are thermally conductive, non-crosslinking 1K materials, often silicone-based. They are used to fill microscopic gaps and surface irregularities between a heat source (e.g., a chip) and a heat sink.
Thanks to their special formulation and plastic consistency, they can be compressed to extremely thin layers < 25 µm. This enables exceptionally low thermal resistance and significantly enhances the cooling performance of electronic assemblies. For sensitive applications where silicone-based products are not permitted, KERAFOL® also offers silicone-free alternatives.
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KERATHERM® Thermal Pastes from Kerafol: alfatec Product Range
alfatec offers a selection of proven KERATHERM® thermal pastes from Kerafol, optimized for a wide range of thermal management requirements:
KERATHERM® KP12
- Color: Gray
- Thermal conductivity: 10.0 W/mK
- Feature: Silicone-free, based on synthetic polymers – ideal for applications where silicone outgassing is undesirable.
KERATHERM® KP14
- Color: Dark gray
- Thermal conductivity: 10.0 W/mK
- Feature: Silicone-free, similar to KP12 with a focus on high performance.
KERATHERM® KP97
- Color: White
- Thermal conductivity: 5.0 W/mK
- Feature: Cost-effective solution with good thermal performance.
KERATHERM® KP98
- Color: Anthracite
- Thermal conductivity: 6.0 W/mK
- Feature: Improved thermal conductivity compared to KP97.
KERATHERM® KP99
- Color: Silver
- Thermal conductivity: 9.2 W/mK
- Feature: Very high thermal conductivity for demanding applications.
Application Areas & Use of Thermal Pastes
Thermal pastes are indispensable in many areas of electronics for optimizing heat dissipation and ensuring the reliability of components.
Technical specifications: KERATHERM® KP97, KP98, KP99, KP12, KP14 in comparison
| Property | Unit | KP97 | KP98 | KP99 | KP12 (Silicone-free) | KP14 (Silicone-free) |
|---|---|---|---|---|---|---|
| Color | White | Anthracite | Silver | Dark gray | Dark gray | |
| Thermal Conductivity | W/mK | 5.0 | 6.0 | 9.2 | 10.0 | 10.0 |
| Electrical Conductivity | pS/m | 0 | 0 | 53 | 0 | 0 |
| Measured Layer Thickness | mm | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 |
| Operating Temperature | °C | -40 bis 150 | -40 bis 150 | -40 bis 150 | -50 bis 150 | -50 bis 150 |
| Density | g/cm³ | 3.1 | 3.5 | 3.9 | 2.5 | 2.7 |
| Viscosity | Soft/pasty | Soft/pasty | Soft/pasty | Pasty | Pasty | |
| Total Mass Loss (TML) | % | ≤1.6 | ≤1.2 | ≤1.4 | ≤1.2 | ≤1.2 |
Note: KP12 and KP14 are based on synthetic thermal polymers and are silicone-free. KP97, KP98, and KP99 are ceramic-filled one-component silicone pastes.
Typical areas of application:
- Power electronics: transistors, MOSFETs, IGBTs
- Computers & servers: CPUs, GPUs, chipsets
- LED lighting: high-power LEDs
- Power supplies & power supply units: Power converters
- Automotive electronics: Control units, power components
- Sensitive applications: Products that cannot tolerate silicone vapors (e.g., in optics, semiconductor manufacturing) benefit from silicone-free pastes.
Our partner in the field of heat-conducting pastes
Kerafol
Our partner KERAFOL offers a wide range of thermally conductive films and potting materials, which are used in microelectronics and sensor technology, among other things. The company develops and produces in Germany and, in addition to established standard products, also offers customised solutions, which can optionally be implemented silicone-free and after an automatic punching process.
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See the quality and performance of our thermal pastes for yourself. Request a no-obligation quote today or download the data sheets.
alfatec – your partner for high-quality electronic components
As your expert partner for electronic components, alfatec supports you in selecting the right thermal pastes for your applications. We offer comprehensive advice and are happy to answer any questions you may have about power modules.
Do you have any questions about our thermal pastes, or would you like a personal consultation? Feel free to contact us.