Unveiling Tflex HP34: Next-Gen Thermal Gap Filler for Modern Electronics

What Is Tflex HP34?

Tflex HP34 is an advanced, silicone-free thermal gap filler developed by Laird Technologies. It features aligned graphite fibers, and boasts a remarkable bulk thermal conductivity of 34 W/mK, striking a perfect balance between softness and high thermal performance.

Key Features & Benefits

  • High Thermal Conductivity (34 W/mK): Ensures rapid heat transfer across interfaces.

  • Silicone-Free, Graphite-Based Composition: Minimizes oil bleed and avoids contamination issues common with traditional silicone pads.

  • Maintains Performance Under Pressure: Optimized to perform best under 10–30 psi operating pressure, common in electronic assemblies.

  • Soft with Excellent Deflection: Offers a compliant interface that adapts to surface irregularities while minimizing thermal resistance.

  • Naturally Tacky: Mounts easily without additional adhesives.

  • Wide Temperature Range: Operates effectively from –40 °C to +125 °C.

  • Environmental Safety & Compliance: Meets RoHS & REACH standards, with low outgassing—making it safe for sensitive electronics.

  • UL 94 V-0 Flammability Rating: Pending certification—adds a layer of fire safety.

Ideal Thicknesses & Sizes for TFLEX HP34

Available in thicknesses ranging from 1 mm to 5 mm, with ±10% tolerance. Standard sheets measure 127 mm × 76 mm (3″ × 5″), and custom die cuts are also an option.

Typical Thermal Resistance (At 10–50 psi)

  • At 10 psi: 0.106–0.212 °C·in²/W

  • At 30 psi: 0.059–0.185 °C·in²/W

  • At 50 psi: 0.048–0.110 °C·in²/W

These values underscore Tflex HP34’s efficiency across a range of compressive loads.

Application Scenarios for TFLEX HP34

Tflex HP34 is tailored for applications where efficient thermal management and soft compliance are vital, such as:

  • 5G Base Stations & Telecom Infrastructure

  • Servers, Datacom, and Networking Equipment

  • Aerospace & Defense Electronics

  • Automotive Modules (e.g., ADAS, infotainment)

  • Consumer Electronics (notebooks, tablets, smart home devices)

More Information on TFLEX HP34

Tflex HP34 is a standout thermal gap filler solution, combining superior heat transfer, pressure resilience, material safety, and ease of use. Its graphite-based, silicone-free design makes it especially compelling for advanced electronics where performance and reliability are non-negotiable. For more information on TFLEX, or a thermal gap filler please contact sales@nedc.com

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