Pyrolytic Graphite Sheet from Panasonic…Powerful, Flexible, Cost Efficient

August 11, 2016
By Krushnang Joshi

Panasonic provides flexible Pyrolytic Graphite Sheet (PGS), an extremely powerful thermal management solution. It is a thin, synthetically created graphite sheet that provides high thermal conductivity and mechanical flexibility. PGS is made from a specific graphite polymer film that allows it to be used in applications requiring extreme thermal protection. Flexibility of this material allows it to cut into customizable shapes and sizes.

Devices are requiring higher power ratings, but device size is staying the same or getting smaller. Thus, Panasonic has strengthened the ability to customize the PGS product. Panasonic offers customized solutions to offer PGS to cut to any shape and size. It is extremely lightweight and thin with thickness measured up to 10µm. Panasonic’s PGS has ½ the weight of aluminum and 1/5 the weight of copper. It also has 1/10 and 1/50 the size of standard gap pads. With the thickness ranging from 10-100µm, Panasonic’s PGS provides different adhesive thickness and adhesive type offerings. Both adhesive and non-adhesive versions are offered in standard sizes and custom cuts. Height and weight are prime factors in offering a high thermal connectivity allowing different insulation and gap pad lamination offerings.

Along with being lightweight and thin, Panasonic’s PGS provides high mechanical flexibility and high thermal conductivity. Panasonic’s PGS went through flexibility tests and endured up to 100,000 bending cycles. It also bends and attaches to a double-sided PCB. Its high thermal conductivity ranges from 700-1950 W/mK, and Z direction conductivity from 10 to 26 W/mK.

Since Panasonic’s PGS is lightweight, thin, and flexible, it offers the advantage of being usable in areas where most thermal management solutions can’t play a role. Some applications of PGS includes mobile devices, drones, communication devices, cameras, and aerial vehicles. Certain car manufacturers are using PGS to spread heat across the car steering wheel and seats.

Panasonic’s PGS is also used in many cases such as heat transport (heat pipe), thermal diffusion, and heat reduction. Heat transport transfers the heat from one side of a module to another. Thermal diffusion reduces heat of a component to create a uniform temperature in a device. And heat reductions’ only concern is to reduce the heat of a module.

Panasonic is heavily investing its full support for the PGS product and will provide design in assistance when necessary for PGS thermal management products.

Check out the video below to learn about how PGS is more effective compared to Copper.