Welcome to Yiwu Leifeng Electronic Technology Co., Ltd. website

PI heating film discusses the comparison between thermal conductive pads and thermal conductive grease?

Release time:

2021-01-17

Thermal PadIt has good thermal conductivity and high voltage resistance. It is an alternative to thermal grease. The material itself has a certain degree of flexibility. It is well suited for power devices and aluminum heat sinks or housings to achieve good heat conduction and dissipation. Let's take a look at a simple comparison between thermal pads and thermal grease!
1. Thermal Conductivity: The thermal conductivity of thermal pads and thermal grease is 1.9-3.0w / m.k and 0.8-3.8w / m.k respectively.
2. Insulation: Thermal grease has poor insulation due to the addition of metal powder,Thermal PadIt has good insulation properties. The electrical insulation index of 1mm thickness is higher than 4000V.
3. Form: Thermal grease is in gel form, while thermal pads are in sheet form.
4. Applications: Thermal grease needs to be carefully and evenly spread (large-size spreading is inconvenient), it is easy to stain surrounding components and cause short circuits and scratches on electronic components. Thermal pads can be cut, the protective film can be removed and directly applied, the tolerance is very small, clean, and saves labor costs.
5. Thickness: As a thermal conductive material filling the gap, thermal grease is limited, while the thickness range of thermal pads is 0.5-10mm, which has a wide range of applications.
6. Thermal Conductivity: Thermal grease with the same thermal conductivity is better than soft silicone thermal pads because thermal grease has lower thermal resistance. Therefore, in order to obtain the same thermal conductivity, the thermal conductivity of the thermal pad is higher than that of the thermal grease.
7. It is convenient to reinstall, while thermal grease is inconvenient to reapply after disassembly.
The above is a description by PI heating film editor aboutThermal Padand a comparison with thermal grease.