EMI shielding film

Shielding film for high-speed signal transmission FPC
(wrapping)

WILMINA®
SF-PC®4300-Z2-C

  • SP
  • PC/Tablet
  • AUTO
  • TV
  • Other

UL94 VTM-0 (combined with Kapton50H)
* Kapton® is a registered trademark of DuPont in the U.S.

Product Overview

In order to prevent radiation noise from the edge faces of FPC, this shielding film for high-speed signal transmission FPC can be bonded to both sides of FPC to wrap it. For shielding edges, there is a way of connecting GND by TH (through-hole), but in such a case, boards become rigid, losing the original flexibility of FPC. By using the SF-PC4300-Z2-C, the flexibility of FPC is secured, and noise suppression measures can be taken for FPC edges.

Features

  • Wrapped shield of FPC edges

    By improving the product strength through the adoption of polyimide in the protection layer, wrapping is possible and noise suppression measures can be taken for FPC edges.
  • Compatible with 200μm steps

    By thickening the adhesion layer and using an isotropic conductive adhesive in order to enable wrapping, the joint resistance value is stabilized together with followability to 200μm steps.
Shielding film for high-speed signal transmission FPC</br> (wrapping)

Main specifications

Item SF-PC4300-Z2-C
Thickness Transfer film 53um
Total thickness (after press) 40um
Protection layer 17.5um
Shielding layer 2um
Isotropic conductive adhesion layer 20um
Peeling strength Over 3.0N/cm
Shelf life (keep cool) 6 months

Examples of Use

  • Cutting noise from edges

    Cutting noise from edges
  • Shield effectiveness by simulation

    Wrapped shield suppresses noise from the edge faces of FPC.
    Wrapped shield suppresses noise from the edge faces of FPC.

Reference data

  • Shield effectiveness by coaxial tube method (7mm coaxial tube)

* Above data and numerical values are all actual measurement values, not guaranteed values.

Download reference materials

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