LAIRD TFLEX 640
Harmonization Code : 8473.30.80.00 | Parts and accessories (other than covers, carrying cases and the like) suitable for use solely or principally with machines of headings 8470 to 8472 ; Parts and accessories of the machines of heading 8471 ; Other; Other
Main features
- 1.02 mm Thickness of Tflex 600 Series
- 3.0 W/(m K) Thermal Interface
- Naturally Tacky Surfaces
Product Description
Tflex™ 640 is the 1.02 mm-thick configuration of the Tflex™ 600 Series, an exceptionally soft and highly compliant silicone thermal gap filler designed to bridge interfaces between heat-generating components and adjacent cooling surfaces. The blue-violet pad uses a boron nitride-filled silicone construction to provide typical thermal conductivity of 3.0 W/m·K. Its naturally tacky surfaces support placement during assembly without requiring an additional adhesive coating.
Key features
- 1.02 mm nominal thickness: Specific Tflex™ 600 Series configuration for controlled thermal-interface gaps.
- Highly compliant construction: Soft silicone gap-filler design supports conformity around uneven component surfaces.
- 3.0 W/m·K thermal conductivity: Supports heat transfer between electronic components and cooling hardware.
- Naturally tacky surfaces: Helps hold the pad in position during assembly without a separate adhesive layer.
Applications / Suitable for
- Automotive electronics, ADAS, infotainment, and ECU assemblies
- Networking and telecommunications equipment
- Portable and consumer electronics
- Industrial and instrumentation electronics
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
Typical as-supplied properties of Tflex 6150 and its parent Tflex 600 Series. Values are provided for design guidance and are not guaranteed specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Construction and composition | Ceramic-filled silicone sheet | — | Tflex 600 Series construction |
| Color | Blue-violet | — | Visual |
| Nominal thickness | 1.02 | mm | Tflex 640 configuration; nominal uncompressed thickness |
| Density | 1.30 | g/cc | Typical family-level value |
| Hardness | 51 | Shore 00 | ASTM D2240 |
| Surface condition | Naturally tacky on both sides | — | Standard construction; one-side-tacky option is separately designated |
| Shelf life | 2 | years | From date of shipment |
After-processing / final-state properties
Typical family-level properties relevant to Tflex 6150 after placement within an assembled thermal interface. Installed performance varies with compression, final thickness, contact pressure, surfaces, and assembly design.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Thermal conductivity | 3.0 | W/m·K | ASTM D5470 |
| Operating-temperature range | -45 to 200 | °C | Documented Tflex 600 Series temperature range |
| Dielectric constant | 3.3 | — | Typical family-level value; frequency not stated in the current product listing |
| Volume resistivity | 2.0 × 1013 | ohm·cm | ASTM D257 |
| Flammability rating | V-0 | — | UL 94; confirm listing scope for the specific thickness and construction |
