TG-A4500 vs TG-A4500F: T-Global Thermal Pads Explained
When it comes to thermal interface materials (TIMs), engineers need solutions that balance high thermal conductivity, electrical insulation, and reliability. Two of the most popular silicone thermal pads in T-Global’s portfolio are the TG-A4500 and the TG-A4500F.
If you’re evaluating thermal pads for electronics, EV batteries, servers, or telecom equipment, this guide breaks down the key specs, applications, and differences between these two powerful options.
What is TG-A4500?
The T-Global TG-A4500 Ultra-Soft Thermal Pad is designed for efficient heat dissipation in high-wattage applications. Its soft, compressible structure ensures strong contact with uneven surfaces, making it one of the most versatile pads on the market.
Key Specifications:
-
Thermal Conductivity: 4.5 W/m·K
-
Operating Range: -50 °C to +180 °C
-
Flame Rating: UL 94 V-0
-
Electrical Insulation: ≥ 10 kV/mm
-
Thickness Options: 0.5 mm – 8.0 mm
-
Properties: Highly compressible, naturally tacky for easy placement
Best Applications:
-
5G base stations and telecom modules
-
Automotive control units
-
Consumer electronics and robotics
-
Power supplies and lighting modules
What is TG-A4500F?
The TG-A4500F Thermal Pad is a fiberglass-reinforced version of the TG-A4500. While slightly lower in thermal conductivity, the fiberglass mesh provides extra mechanical stability and insulation strength, making it ideal for rugged, high-vibration environments.
Key Specifications:
-
Thermal Conductivity: 4.0 W/m·K
-
Operating Range: -50 °C to +180 °C
-
Flame Rating: UL 94 V-0
-
Electrical Insulation: ≥ 11 kV/mm
-
Thickness Options: 0.5 mm – 11.0 mm
-
Properties: Reinforced with fiberglass mesh, reduced deformation, higher flexural strength
Best Applications:
-
Electric vehicle (EV) battery modules and controllers
-
Power invertersm, and converters
-
Telecom power units
-
Ruggedized electronics and industrial automation
-
Environments with high vibration or compression stress
TG-A4500 vs TG-A4500F: Key Differences
| Feature / Property | TG-A4500 | TG-A4500F (Fiberglass-Reinforced) |
|---|---|---|
| Thermal Conductivity | 4.5 W/m·K | 4.0 W/m·K |
| Flexibility | Ultra-soft, highly compliant | Stiffer, more stable |
| Electrical Insulation | ≥ 10 kV/mm | ≥ 11 kV/mm |
| Operating Range | -50 °C to +180 °C | -50 °C to +180 °C |
| Flame Rating | V-0 | V-0 |
| Thickness Range | 0.5–8.0 mm | 0.5–11.0 mm |
| Ideal Use Case | General-purpose cooling | Rugged, reinforced applications |
Which Thermal Pad Should You Choose?
-
Choose TG-A4500 if you need: maximum heat transfer, flexibility, and compliance with uneven surfaces. Perfect for general-purpose cooling in electronics, GPUs, servers, and telecom gear.
-
Choose TG-A4500F if you need: structural stability, reinforcement, and stronger electrical insulation. Ideal for EV batteries, automotive modules, and rugged electronics where vibration or compression stress is common.
Why Engineers Trust T-Global Thermal Pads
Both TG-A4500 and TG-A4500F are part of T-Global’s industry-leading line of thermal interface materials, trusted worldwide for high reliability, strong insulation, and efficient cooling performance. Whether you need soft pads for delicate assemblies or reinforced pads for demanding environments, T-Global provides a thermal solution to match your project.
Final Thoughts
When comparing TG-A4500 vs TG-A4500F, the choice comes down to flexibility vs reinforcement. The TG-A4500 offers superior compliance and thermal conductivity, while the TG-A4500F trades a bit of conductivity for fiberglass strength and higher insulation.
Both pads are excellent solutions for electronics cooling, EV battery thermal management, data center servers, and industrial applications.
In short:
-
TG-A4500 = Maximum softness + heat transfer
-
TG-A4500F = Added strength + rugged reliability