PTM7950 Thermal pad 40x80x0.25mm phase change thermal pad vs Aairhut Thermal Pads 13W/mK
Updated August 2026 — The PTM7950 Thermal Pad excels in high-performance applications, while the Aairhut Thermal Pads offer great value for general use.
The PTM7950 Thermal Pad excels in high-performance applications, while the Aairhut Thermal Pads offer great value for general use.
Why PTM7950 Thermal pad 40x80x0.25mm phase change thermal pad is better
thermal performance
PTM7950 has a phase change mechanism for better cooling under stress
reliability
PTM7950 lasts 1000 hours at 150°C
specific design
PTM7950 is tailored for high-performance integrated circuits
Why Aairhut Thermal Pads 13W/mK is better
price
Aairhut is significantly cheaper at £6.99
thermal conductivity
Aairhut has a higher thermal conductivity of 13W/mK
ease of use
Aairhut pads are easier to cut and apply
Overall score
Specifications
| Spec | PTM7950 Thermal pad 40x80x0.25mm phase change thermal pad | Aairhut Thermal Pads 13W/mK |
|---|---|---|
| Thermal Conductivity | 8.5 W/mK | 13 W/mK |
| Operating Temp | 45°C | -40°C to 200°C |
| Lifespan | 1000 hours | N/A |
| Material Type | Phase Change | Silicone |
| Safety Features | Low thermal impedance | Non-toxic, flame-retardant |
Dimension comparison
Price Comparison
When it comes to price, the Aairhut Thermal Pads are significantly cheaper at £6.99 compared to the PTM7950 Thermal Pad, which is priced at £19.99. This presents a compelling reason for budget-conscious consumers to consider the Aairhut option. While the Aairhut thermal pads provide a good balance of price and performance, the PTM7950 offers advanced features that justify its higher cost, especially for users needing high-performance cooling solutions. The £13.00 difference means that for those on a strict budget or looking for general use, the Aairhut Thermal Pads may be the more attractive choice.
Thermal Conductivity
The Aairhut Thermal Pads boast an impressive thermal conductivity of 13W/mK, which is higher than the PTM7950's 8.5W/mK. This means that the Aairhut pads can improve heat transfer more effectively, making them suitable for applications where rapid cooling is essential. However, the PTM7950 is designed as a phase change material, which provides a different cooling mechanism that can be more effective in high-performance applications, particularly in devices that generate significant heat. The choice between these thermal pads may ultimately depend on the specific cooling requirements of the user's application.
Design and Size
The PTM7950 Thermal Pad is specifically sized at 40x80x0.25mm, while the Aairhut Thermal Pads come in a slightly larger size of 85x45mm. This difference in dimensions may influence the choice depending on the components to be cooled. The PTM7950 provides a tailored fit for compact spaces, while the Aairhut pads offer flexibility as they can be cut to size for custom applications. The dual-sided sticky feature of the Aairhut pads also aids in ease of installation, making them user-friendly for DIY projects.
Performance Under Stress
The PTM7950 Thermal Pad is engineered for high performance with a reliability claim of lasting 1000 hours at 150°C and maintaining low thermal impedance. This makes it ideal for high-performance integrated circuit devices that operate under stressful conditions. In contrast, while the Aairhut Thermal Pads are rated to perform well in temperatures ranging from -40°C to 200°C, their performance under extreme conditions may not match the specifically tailored endurance of the PTM7950. Users who anticipate high thermal stress may prefer the robust characteristics of the PTM7950.
Ease of Use
When it comes to user-friendliness, the Aairhut Thermal Pads have an advantage with their slightly sticky dual-sided feature that allows for easy application. Users can cut these pads to their desired size, accommodating various needs without requiring additional tools. In contrast, the PTM7950 comes with a package that includes a Phillips screwdriver, cleaning cloth, spatula, and cleaning brush, which may appeal to those who appreciate a comprehensive kit. However, the added components of the PTM7950 may not be necessary for all users, making the Aairhut Thermal Pads potentially easier to work with for casual applications.
Versatility of Applications
The versatility of the Aairhut Thermal Pads is notable, as they are suitable for a wide range of applications including PCBs, CPUs, GPUs, various gaming consoles, and even car electrical appliances. This wide applicability makes them a go-to choice for users looking for a multipurpose thermal solution. Conversely, the PTM7950 is designed specifically for high-performance integrated circuit devices, which may limit its versatility in more general applications. Therefore, users seeking a thermal pad for a specific high-stakes application may find the PTM7950 more aligned with their needs, while those requiring a general-use product may opt for the Aairhut.
Safety and Reliability
Both thermal pads are designed with safety in mind, but they have different features that may appeal to users concerned about reliability. The Aairhut Thermal Pads are non-toxic, odourless, and flame-retardant, providing confidence in their use across a variety of electronic devices. On the other hand, the PTM7950's design emphasizes its long-lasting reliability, with a lifespan claim of 1000 cycles. For users prioritising safety in everyday applications, the Aairhut may be the better choice, while those focused on durability for high-performance environments might lean towards the PTM7950.
Which should you buy?
Choosing between the PTM7950 Thermal Pad and the Aairhut Thermal Pads ultimately depends on your specific needs. If budget is a primary concern and you require a versatile solution for general use, the Aairhut Thermal Pads at £6.99 offer excellent thermal conductivity and ease of application. However, if you need a highly reliable thermal pad capable of withstanding extreme conditions for high-performance devices, the PTM7950 at £19.99 provides advanced features and superior longevity. Each product has its strengths, so consider your priorities before making a decision.
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