The R-5375 from Panasonic Corporation is a Halogen-free ultra-low transmission loss multi-layer circuit board laminate. It is suitable for use in ICT infrastructure equipment, high-speed networking (high-end server/router, optical network, switch), and high-layer count PCB applications. This laminate has a glass transition temperature (Tg) of 250°C, a dielectric constant (Dk) of 3.4, and a dissipation factor (Df) of 0.003.
