Parker Chomerics THERM-A-GAP™ G974 5.0W/m-K Low Hardness Gap Pads
Parker Chomerics THERM-A-GAP™ G974 Gap Pads feature a low hardness of 40 Shore A and a thermal conductivity of 5.0W/m-K, providing a flexible solution for a variety of applications. These thermally conductive gap filler pads offer low compression forces and excellent heat transfer while maintaining conformability between mating surfaces. By combining ultra-low outgassing with excellent thermal conductivity and conformability, the series provides an effective thermal interface between heat sinks and electronic devices where uneven surfaces, rough surface textures, and air gaps may exist. Parker Chomerics THERM-A-GAP G974 Gap Pads come with high-strength acrylic pressure-sensitive adhesive (PSA) for easy attachment to cold surfaces. Typical applications include consumer electronics, LEDs, laptops, automotive electronic control units (ECUs), and telecommunications equipment.
Features
- Thermally conductive gap filler pads
- Excellent heat transfer and low compression forces while maintaining conformability between mating surfaces
- Ultra-low deflection force
- High thermal conductivity
- High tack surface reduces contact resistance
- Ultra-low outgassing
- Effective thermal interface between heat sinks and electronic devices where uneven surfaces, air gaps, and rough surface textures may exist
- Fiberglass carrier with PSA
- Various thicknesses available, finished in standard sheets
Applications
- Telecommunications equipment
- Consumer electronics
- Automotive ECUs
- LEDs and lighting
- Power conversion
- Power semiconductors
- Desktop computers, laptops, and servers
- Handheld devices
- Memory modules
- Vibration dampening
Specifications
- 0.010" to 0.100" (0.25mm to 2.54mm) standard thickness
- 1.4 specific gravity
- 40 Shore A hardness
- -67°C to +392°C operating temperature range
- 5.0W/m·K thermal conductivity
- 0.45°C-in2/W (2.9°C-cm2/W) thermal impedance at 10psi, at 0.04" (1mm) thick
- 0.9J/g-K heat capacity
- 100ppm/K coefficient of thermal expansion
- 200kVac/8mm dielectric strength
- 1014Ω-cm volume resistivity
- 3.2 dielectric constant at 1000kHz
- < 0.001 dissipation factor at 1000kHz
- 0.59% TML (0.18% CVCM) outgassing
Application Examples
Related Gap Pads
Parker Chomerics THERM-A-GAP™ Thermally Conductive Pads
Designed for applications where heat must be conducted over large and variable gaps.