MINORU® Acrylic Thermal Interface Sheet JTGAxxSNT Series is designed to optimize the heat transfer path between heat-generating components and cooling devices such as heat sinks, and is composed of a flexible acrylic elastomer containing thermally conductive ceramic particles. As an innovative silicone-free thermal management material, it guarantees zero siloxane release during long-term use, effectively preventing potential damage to precision electronic devices, especially chips. Thanks to the flexibility of this series, hardness levels as low as ASKER C 5 can be achieved, enabling seamless adhesion under extremely low stress while maintaining high thermal dissipation performance.
Features
- High thermal conductivity and good electrical insulation properties.
- Superior flexibility ensures excellent conformability to non-planar surfaces.
- Allows temporary pre-fixation through slight tackiness. High wettability reduces thermal resistance.
- Silicone-free design eliminates siloxane gas generation, preventing contact failures.
MINORU Product Naming Convention

Product Structure
Single-Sided Tack JTGAxxSNT-xx Series (Ultra-Soft Hardness)

General Properties (Typical Values)
| ITEMS | JTGA15SNT | JTGA20SNT | JTGA30SNT | JTGA40SNT | TEST
METHOD |
| ※Thermal Conductivity (W/m·K) | 1.5 | 2 | 3 | 4 | ASTM D5470 |
| Thickness(mm) | 0.5mm〜12mm | 0.5mm〜12mm | 0.5mm〜12mm | 0.5mm〜12mm | — |
| Color | White | — | |||
| Density (g/cm3, @ 25°C) | 2.52 | 2.69 | 2.78 | 3.0 | — |
| ※Hardness | 35 | 35 | 45 | 45 | Shore 00 |
| ※Hardness | 5 | 5 | 5 | 5 | Asker C |
| Volume Resistivity(Ω-cm) | >1*1012 | >1*1012 | >1*1012 | >1*1012 | ASTM D257-14 |
| Dielectric Strength (kV/mm) 1mm | >10 | >10 | >10 | >10 | ASTM D149-09 |
| Dielectric Constant 1MHz | 6.57 | 6.72 | 6.80 | 6.85 | ASTM D150-11 |
| Tensile Strength(MPa) | 0.1 | 0.1 | 0.1 | 0.1 | JIS K 6251 |
| UL94 | V-0 | Equivalent UL | |||
| Working Temperature (°C) | -40°C~130°C | — | |||
Disclaimer: The technical parameters listed above are typical values and not guaranteed specifications.
※* Thermal conductivity and hardness are measured only for the thermally conductive acrylic layer (tacky).
Application ideas
