What Are Graphite Sheets? A Comprehensive Guide to Thermal Management Solutions

Graphite sheets are advanced thermal management products designed to function as heat spreaders, significantly enhancing the thermal transfer between heat-generating components and heat sinks. Typically made from natural or synthetic graphite, these sheets exhibit exceptional thermal conductivity, ranging from 100 to 350 W/m-K—far surpassing common thermal interface materials like aluminum or copper. Notably, our T68 synthetic graphite sheet offers an impressive conductivity of 1500 W/m-K along the x-y axes.

Applications and Advantages of Graphite Sheets

Graphite sheets are versatile and can be employed in a wide range of electronic and industrial applications, including:

• Electronic Devices
• Power Semiconductors
• LED Lighting
• Telecommunications Equipment

These sheets serve as a superior alternative to thermal grease or thermal paste, improving the thermal conductivity between heat sources and heat sinks. One of their primary benefits is their ability to withstand high temperatures and thermal cycling, making them ideal for high-power applications where traditional thermal interface materials might fall short. Additionally, graphite sheets are highly flexible and conformable, allowing them to adapt to uneven surfaces and fill small gaps efficiently.

Graphite sheets can also be paired with PET liners to provide electrical insulation, making them suitable for use in electronic devices and power semiconductors. Their long shelf life is another advantage, as they do not dry out or lose effectiveness over time.

Challenges and Considerations

While graphite sheets offer many benefits, they can be more challenging to apply compared to other thermal interface materials like thermal pads or thermal grease. Once applied, they can be difficult to remove. Moreover, their effectiveness can vary depending on the specific application and conditions, so it’s crucial to select the right product and ensure proper installation.

In Summary

Graphite sheets are essential thermal management products used to enhance heat transfer between heat sources and heat sinks. With high thermal conductivity, they are ideal for high-power electronic applications where traditional materials may not perform well.

Learn More:

At T-Global Technology, we specialize in thermal management solutions, offering a wide range of off-the-shelf or customized graphite sheet products tailored to your needs. Explore our range of graphite sheet heat spreaders, browse our full product selection, or contact us for samples and more information.