Flex Suppressor® - EF Series

Part Number Information
Part #: Price/Availability:
NEC Tokin EFA Buy Now
NEC Tokin EFF Buy Now
NEC Tokin EFG Buy Now
NEC Tokin EFH Buy Now
NEC Tokin EFR Buy Now
NEC Tokin EFX Buy Now

The EF Series Flex Suppressor® is an effective suppressor for high frequency noise generated from electronic devices. The flexible sheet is a polymer base blended with micron sized magnetic powders dispersed into the material. The EF Series is effective for resonance and wave suppression, and can be cut into virtually any shape.


  • “UL 94 HB” qualified for the plastic flammability standard. Competitors (including the AB-7000 series from 3M) are not qualified for this standard.
  • Usable in quasi-microwave ranges
  • Can be used in high-speed clocks (Up to 10 GHz)
  • Thin, flexible material used in portable equipment
  • Virtually no limitation in where it can be used
  • Less time required for installation
  • Can be manufactured in a variety of shapes/sizes
  • Resonance suppression – controls the high frequency current and suppresses unwanted electromagnetic resonance by creating impedance
  • Electromagnetic wave suppression – suppresses the electromagnetic wave intruding the sheet by the magnetic loss of its composition


  • Radiation noise suppression for electronic equipment
  • Quasi-microwave range interference prevention inside and in between electronics
  • Mobile communications equipment, wireless equipment (Wi-Fi, Bluetooth), office automation equipment (personal computers, TFT LCD’s etc.), communication terminals in audio/video equipment, digital exchanges, etc.
  • ESD (electro static discharge) countermeasure