What Is a Heatsink Thermal Pad?
Thermal pads are high-performance gap-filled thermally conductive materials that are mainly used for the transfer interface between electronic equipment and heat sinks or product housings. Has good viscosity, flexibility, good compressive properties, and has excellent thermal conductivity. In use, it can completely exhaust the air between the electronic component and the heat sink to achieve sufficient contact. The cooling effect is significantly increased.
Thermal pad
- Chinese name
- Thermal pad
- Use
- Electronic device and heat sink transfer interface
- Sexual performance
- Good thermal conductivity and high level of pressure resistance
- Thermal pads are high-performance gap-filled thermally conductive materials that are mainly used for the transfer interface between electronic equipment and heat sinks or product housings. Has good viscosity, flexibility, good compressive properties, and has excellent thermal conductivity. In use, it can completely exhaust the air between the electronic component and the heat sink to achieve sufficient contact. The cooling effect is significantly increased.
- The thermal pad has certain flexibility, excellent insulation, compressibility, and natural tackiness on the surface. It is specially designed for the use of the gap to transfer heat. It can fill the gap and complete the heat transfer between the heating and cooling parts. It can be arbitrarily cut to help meet the requirements of automated production and product maintenance. The thickness of the silicone thermal conductive insulation pad ranges from 0.5mm to 5mm, plus one for every 0.5mm, that is, 0.5mm 1mm 1.5mm 2mm to 5mm. Special requirements can be increased to 15mm. It is specially produced for the design scheme that uses the gap to transfer heat. Fill the gap, complete the heat transfer between the heat-generating and heat-radiating parts, and also play the role of shock absorption, insulation and sealing.It can meet the design requirements of miniaturization and ultra-thinness of the company's equipment.It is a new material with great processability and usability. Widely used in electronic and electrical products.
- It has thermal conductivity, insulation, and shock resistance. The soft surface of the material is slightly viscous and easy to operate. It can be used as a thermal filler between various irregular parts and radiators, housings, etc. Some thermal silica gels have glass fibers (or carbon fibers) added to increase their mechanical strength.
- Used in power supply, LCD / PDP TV, LED lighting, automotive electronics, optoelectronics, notebook computers and other industries. The traditional thermally conductive material is thermally conductive silicone grease.
- Here is a simple comparison of thermal pads with thermal grease:
- Insulation: Thermally conductive silicone grease has poor insulation due to the addition of metal powder, and the thermally conductive silicone pad has good insulation properties. The 1mm thickness electrical insulation index is above 4000 volts.
- Form: Thermally conductive silicone grease is gel-like and thermally conductive silicone pad is sheet.
- Use: Thermally conductive silicone grease needs to be applied evenly (if it is large, it is more inconvenient to apply), it is easy to dirty surrounding devices and cause short circuits and scratches on electronic components; the thermally conductive silicone pad can be cut at will, and the protective film can be directly applied The tolerances are small, clean and save labor costs.
- Thickness: As a gap-filling thermally conductive material, thermally conductive silicone grease is limited. The thickness of thermally conductive silicone pads ranges from 0.5-10mm, and has a wide range of applications.
- Thermal conductivity: Thermally conductive silicone grease with the same thermal conductivity is better than soft silicone thermal conductive sheet, because the thermal resistance of thermally conductive silicone grease is small. Therefore, to achieve the same thermal conductivity, the thermal conductivity of the thermal conductive silicone pad must be higher than the thermal conductive silicone grease.
- It is convenient to reinstall, but it is not convenient to re-apply the thermal grease after disassembly.
- Price: Thermally conductive silicone grease has been widely used, and the price is low. Thermally conductive silicone pads are mostly used in thin and precision electronic products such as notebook computers, and the price is slightly higher.