TFO-X-SI
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TFO-X-SI is a high performance electrically insulating thermally conductive silicone foil for an optimised thermal coupling between electronic packages and heat sinks. Through the specific formulation and filling with highly thermally conductive ceramic particles an excellent thermal conductivity is reached. Its conformal surface structure guarantees a very good compliance to the contact surfaces. Thus the total thermal resistance is minimised. The fibreglass reinforcement provides for an outstanding mechanic stability and cutthrough resistance as well as easy handling. For an easy and reliable preassembly the interface material is available with low tack pressure sensitive adhesive on one side.
PROPERTIES
- Thermal conductivity: 5.0 W/mK
- High surface compliance
- Excellent thermal contact
- Outstanding mechanic stability through fibreglass reinforcement
- Extraordinary chemical resistance and longterm stability
- Residue-free removal after use
AVAILABILITY
- Sheet 440 x 510 mm
- Non tacky
(TFO-XXXX-SI) - Tacky on one side
(TFO-XXXX-SI-A1) - Die cut parts
- Kiss cut parts on sheet
APPLICATION EXAMPLES
Thermal link of:
- MOSFETs or IGBTs
- Power diodes or AC/DC converters
- Power modules
For use in Switch mode power supplies / Motor control units / Automotive engine management systems / UPS units / Solar systems
OVERVIEW
| Property | Unit | TFO-X200-SI | TFO-X300-SI | TFO-X450-SI | TFO-X800-SI |
|---|---|---|---|---|---|
| Material | Ceramic filled silicone | Ceramic filled silicone | Ceramic filled silicone | Ceramic filled silicone | |
| Colour | White | White | White | White | |
| Reinforcement | Fibreglass | Fibreglass | Fibreglass | Fibreglass | |
| Thickness | mm | 0,20±0,05 | 0,30±0,05 | 0,45±0,05 | 0,80+0,20 / -0,05 |
| Tensile Strength1 | psi | 9 | 8 | 5 | 4 |
| UL Flammability | UL 94 | VO | VO | VO | VO |
| RoHS Conformity | 2015 / 863 / EU | Yes | Yes | Yes | Yes |
| Thermal | |||||
| Resistances2 @ 150 PSI | °C-inch²/W | 0.11 | 0.15 | 0.17 | 0.27 |
| Resistance2 @ 30 PSI | °C-inch²/W | 0.29 | 0.32 | 0.35 | 0.52 |
| Thermal Conductivity | W/mK | 5.0 | 5.0 | 5.0 | 5.0 |
| Operating Temperature Range | °C | - 50 to + 200 | - 50 to + 200 | - 50 to + 200 | - 50 to + 200 |
| Electric | |||||
| Breakdown Voltage3 | kV AC | 3.0 | 6.0 | 9.0 | > 10 |
| Volume Resistivity | Ohm - cm | 1.7 x 1015 | 7.9 x 1015 | 9.2 x 1015 | 8.9 x 1015 |
| Dielectric Constant | @ 1 MHz | 3.3 | 3.3 | 3.3 | 3.3 |
