• Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film
  • Weltweit führender Hersteller von
    hoch qualitativem metallisiertem Film

Metallized PEN film (polyethylene naphthalate)

Steinerfilm® E is based on a biaxially oriented polyethylene naphthalate; better known by its abbreviation PEN.

This film is offered in various metallizing patterns and individual slit widths for highly customised capacitors and applications.

The molecule shown above is the basis for this film. The complex structure of these macro molecules differentiates this film from other materials.

The PEN film making process also uses additives, so-called nanoparticles of a certain corn size and distribution, to generate the surface structure.

This finally makes the film surface looking like a PET film and the stoichiometric affinity of the molecule puts the electrical character also in the neighbourhood of polyester.

  • PEN performs electrically like PET but with a higher mechanical and thermal level
  • PEN is inert against moisture at high temperatures
  • the lower shrinkage versus temperature and a high melting point makes the film compatible for a reflow soldering process

Typical data for PEN

Density ρ1,36g/cm³
Melting point266°C
Long-term temperature range<175°C
Shrinkage in air md<1,5%@ 150°C, 30 min
Shrinkage in air td<1,1%@ 150°C, 30 min
Field strength in air 250 - 350 V/µm@ 23°C
Loss factor tan δ <0,005@ 1 kHz and 23ºC
Dielectric constant 2,9@ 1 kHz and 23°C
Tensile strength md160 - 190 N/mm²23°C
Tensile strength td175 - 220 N/mm²23°C
Elongation at break md25 - 50%23°C
Elongation at break td25 - 40%23°C
Modulus of elasticity md4800 - 4900 MPa23°C
Modulus of elasticity td5200 - 5500 MPa23°C
Spec. resistance 2*10↑17 Ω cm23°C
This difference of machine and transverse direction is typical for biaxially orientated plastic films.

PEN is used for stack type or SMD capacitors.