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IS680 AG

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The IS680 AG from Isola is Low-Loss Laminate Materials suitable for many commercial RF/microwave printed circuit designs. This substrate has a dielectric constant (Dk) from 2.80 to 3.45 which is stable while operating from -55°C to +125°C up to W-band frequencies. The IS680 AG offers an ultra-low dissipation factor (Df), making it an extremely cost-effective alternative to PTFE and other commercial microwave laminate materials in double-sided applications. The laminates are offered with different thickness options - 20, 30, 60 mils (0.51, 0.76, 1.5 mm). These materials have IPC-4103/17 and UL (E41625) industry approvals and are currently manufactured in North America and Europe. They are suitable for RF/microwave, and aerospace & defense applications.

Product Specifications

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Product Details

  • Part Number
    IS680 AG
  • Manufacturer
    Isola Group
  • Description
    Low-Loss Laminate Materials for Aerospace & Defense Applications

General Parameters

  • Dk (Dielectric Constant)
    3 / 3.38 / 3.45 / 3.48
  • Df (Dissipation Factor)
    0.0020 to 0.0029
  • Td
    360 Degrees C
  • Tg
    200 Degrees C
  • CTE x-y
    12 ppm/°C
  • CTE z
    44.7 to 191 ppm/°C
  • Thickness
    0.51, 0.76, 1.5 mm
  • Frequency
    Up to 10 GHz
  • Electrical Strength
    45 kV/mm / 1133 V/mil
  • Industry Application
    Aerospace & Defense
  • Moisture_Absorbtion
    0.10 %
  • Peel Strength
    0.70 N/mm / 4.01 lb/inch
  • Arc Resistance
    139 s
  • Dielectric Breakdown
    45.4 kV
  • Flexural Strength (Machine/Cross)
    28.5 to 37.5 ksi
  • Thermal Conductivity
    0.38 to 0.53 W/mK

Technical Documents

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