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TU-742 HF

Mid. Tg Halogen Free Material
Core: TU-742 HF; Prepreg: TU-74P HF

TU-742 HF/TU-74P HF halogen free materials are made of epoxy resin and E-glass fabric. Unlike conventional FR-4 material using brominated resin as flame retardant, TU-742 HF/TU-74P HF achieve flammability class of UL94V-0 by incorporating nitrogen compounds in the materials. The materials are compatible with the AOI process and exhibit the UV-block characteristic. TU-74P HF is designed for use with TU-742 HF for making multilayer printed wire boards. TU-742 HF is also available for single/double sided application. This series of green materials are designed to eliminate the use of halogenated resins due to the potential hazardous effects from the environmental concerns. TU-742 HF laminates also exhibit superior chemical resistance, thermal stability and CAF resistance.

Main Applications
  • Mobile Communication
Key Features
  • Halogen, antimony, and red phosphorous free
  • Environmental friendly materials
  • Compatible to PCB processes
  • Low coefficient of thermal expansion
  • Anti-CAF capability
Property Typical Values
Tg (TMA) 150°C
Td (TGA) 370°C
CTE z-axis (50 to 260 °C) 3.1%
T-260/ T-288 >60 min/ >60 min
Permittivity (RC 50%) @1GHz 4.4
Loss Tangent (RC 50%) @1GHz 0.010

 

Industry Approvals
  • UL Designation - ANSI Grade: FR-4.1
  • UL File Number: E189572
  • Flammability Rating: 94V-0
  • Maximum Operating Temperature: 130°C
  • IPC-4101 Type Designation : /127, /128
Standard Availability
  • Thickness: 0.002”[0.05mm] to 0.062”[1.58mm], available in sheet or panel form
  • Copper Foil Cladding: 1/3 to 5oz (HTE) for built-up; 1/3 to 3 oz (HTE) for double sides and H to 2 oz (MLS)
  • Prepregs: Available in roll or panel form