Isola IS680

IS680 laminate materials exhibit exceptional electrical properties which are very stable over a broad frequency and temperature range. IS680 is suitable for many of taday’s high speed digital and RF/microwave printed circuit designs. It features a Dielectric Constant (Dk) that is stable between -55C and 125C, up to 20 GHz. In addition, IS680 offers a lower dissipation factor (Df) of 0.003 making it a cost effective alternative to PTFE and other commercial microwave and high speed dgital laminate materials.


  • High thermal performance – Tg:200C (DSC), Td:360C (TGA@5% wt loss), Low CTE in the Z-axis 2.9% (55C-288C)
  • T260: 60+ minutes
  • T288: 60+ minutes
  • RoHS Compliant
  • Electrical properties – Dk: 3.30, Df: 0.003 +/- 0.0005, Exceptional dielectric properties over a broad frequency and temperature range per IPC-TM-650-
  • Core Material Standard Availability – Thickness 0.020″, 0.030″ and 0.060″, Available in full size sheet or panel form
  • Copper Foil Type Availability – Standard HTE Grade 3, RTF (Reverse Treat Foil), VLP-2 (2micron)
  • Copper weights – 1/2, 1 and 2 oz (18, 35 and 70 micron) available, Heavier coper available upon request, Thinner copper foil available upon request
  • Industry Approvals – UL File Number E41625, UL 94 V-0