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CONDUCTIVE FILM

CONDUCTIVE FILM
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CONDUCTIVE FILM

Product catalog summary
Introduction
Ghiringhelli Mario offers conductive EMI shielding products, specifically coated polyester films with a silver base, designed for global applications. These films are particularly suitable for EMI shields in displays and other applications requiring transparency.

Specifications
The films are available in two variants, Pe.Ag.5 and Pe.Ag.9, both with a polyester thickness of 175 microns. They differ in visible light transmission, infrared reflection, and surface resistance:
  • Pe.Ag.5: Minimum 75% visible light transmission, minimum 80% infrared reflection, surface resistance of 4.5 Ω/sq ± 1.
  • Pe.Ag.9: Minimum 82% visible light transmission, minimum 75% infrared reflection, surface resistance of 8.0 Ω/sq ± 2.0.
Both variants operate effectively within a temperature range of -30°C to +80°C.

Shielding Effectiveness
The shielding effectiveness, measured in decibels (dB), varies across frequencies from 100MHz to 1GHz:
  • Pe.Ag.5: 24 - 44 dB
  • Pe.Ag.9: 20 - 44 dB
The effectiveness is calculated using the formula: SE = 20log [(7x100,000,000,000)/(fXR)], where 'f' is the frequency in Hz and 'R' is the surface resistance.

Performance Standards
The products conform to MIL-STD-285 standards for EMI shielding performance and are compliant with UL and RoHS standards.

Graphical Data
A graph illustrates the attenuation in dB across a frequency range from 1KHz to 10GHz, showing the performance of both Pe.Ag.5 and Pe.Ag.9 films.
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Catalog excerpts

CONDUCTIVE FILM-1

From Italy, for the World Conductive EMI shielding coated polyester film silver based. This combination of low surface resistance and high visible light transmission uniquely qualifies them for use in EMI shields of displays and other applications that require shield transparency. When properly grounded, PeAg films can provide good attenuation over the frequency range 1-10 GHz. The ability of Ag conductive coatings to attenuate the electromagnetic energy emitted by electronic devices depends entirely of the surface resistance of the coatings. The shielding effectiveness of Ag conductive coatings, expressed in decibels (dB), can be calculated by means of the following formula: SE = 20log [(7x100.000.000.000)/(fXR)] f = frequency of interest in Hz - R =surface resistance of Ag coated film. Pe.Ag.5 POLYESTER THICKNESS (MICRON) VISIBLE LIGHT TRANSMISSION INFRARED REFLECTION SHIELDING EFFECTIVENESS (100MHZ-1GHZ) WORKING TEMPERATURE (°C) EMI SHIELDING PERFORMANCES / MIL-STD-285 Shielding Effectiveness 180 160 Attenuation (dB) RoHS CONFORME In all cases, details and values should be verified by the customer GHIRINGHELLI MARIO e-mail: [email protected] http://www.ghiringhellimario.com Via Luigi Riva, 10 - 21013 Gallarate – ITALY Tel. +39 0331 700525/+39 0331 798842 Fax. +39 0331 700526

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.