astra77The Astra MT77 laminate materials from Isola have been desned for commercial RFmicrowave printed circuit desns. They feature a dielectric constant (Dk) that is stable between -40°CThe ASTRA MT77 from Isola Group is a PCB Laminate with a dielectric constant (Dk) 3 that is stable between -40°C and +140°C. This laminate has a Glass Transition Temperature (Tg) of