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Products > I-Tera® MT40

I-Tera® MT40 Tg 200, Td 360
Dk 3.45, Df 0.0031
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I-Tera® MT laminate materials exhibit exceptional electrical properties which are very stable over a broad frequency and temperature range.

I-Tera® MT40 is suitable for many of today’s high speed digital and RF/microwave printed circuit designs. I-Tera MT40 features a dielectric constant (Dk) that is stable between -55°C and +125°C up to 20 GHz up to W-band frequencies. In addition, I-Tera MT40 offers a lower dissipation factor (Df) of 0.0031 making it a cost effective alternative to PTFE and other commercial microwave and high-speed digital laminate materials.

I-Tera MT40 laminate materials are currently being offered in both laminate and prepreg form in typical thicknesses and standard panel sizes. This provides a complete materials solution package for high-speed digital multilayer, hybrid, RF/microwave, multilayer and double sided printed circuit designs. I-Tera MT40 does not require any special through hole treatments commonly needed when processing PTFE based laminate materials.

Key Features

Electrical Properties

  • Dk: 3.45
  • Df: 0.0031
  • Typical electrical properties over a broad frequency and temperature range per IPC-TM-650-2.5.5.5

High Thermal Performance

  • Tg of 200°C  (DMA)
  • Td of 360°C (TGA)
  • Low CTE in the Z-axis 2.8%  (50 to 260°C)

Available in Laminate and Prepreg

  • I-Tera MT40 offers a complete laminate materials solution for double-sided, hybrid and multilayer printed circuit designs.

Standard Availability

  • Thicknesses: 0.0025”-0.018”, 0.020” and 0.030”
  • Copper Foil Cladding: ½, 1 and 2 oz., standard HTE – Grade 3, RTF and VLP-2
  • Prepregs: Rolls or panels
  • Glass Styles: I-Tera MT40 offers the unique ability to use standard glass fabrics
  • UL Recognized: V-0
  • Non-ANSI