Mu-ferro foil & tape have been developed for low-frequency (LF) magnetic field shielding

Mu-ferro foil & tape 3208

Mu-ferro foil & tape have been developed for low-frequency (LF) magnetic field shielding

Mu-ferro foil/tape is a thin foil; its thickness is only 0.023 mm. It combines excellent soft magnetic properties with unusual mechanical hardness and flexibility. This means that tight bends can be realised with only very slight impairment of permeability. The fine strip thickness and comparatively low electrical conductivity permit effective shielding even of higher-frequency fields. The roll can be ordered ordered up to 100 meter in length and a width up to 50 meter.


Applications

The primary applications of Mu-ferro foil/tape are flexible shielded cables with small diameters and rapid, flexible solutions to problems at low field strengths. 

Other applications

  • Magnet heads
  • Magnetic field sensors
  • Chokes
  • Transformers
  • Electronic article-surveillance tag

Advantages

  • Very high permeability
  • Low losses

Characteristics

Mu-ferro foil works well for shielding low-frequency magnetic fields. Due to the low electrical resistance it shields both low-frequency electric fields (LF) and high-frequency fields (HF). Comparable with Mu-Metal specifications.

Properties

  • Easy to bend
  • Easy to fold
  • Can be cut with scissors
  • Good corrosion resistance in a normal environment
  • Bending, folding, cutting does not cause major loss of attenuation

Grounding

Due to the highly conductive surface this material can be grounded easily to shield low-frequency (LF) electric fields. For professional grounding please contact us.


Technical data

Width Any width up to 50 mm
Length By the meter; rolls of up to 100 m
Attenuation LF magnetic field 14 dB = 80 % (for more shielding, use multiple layers); Attenuation HF: 100 dB at 1 GHz
Permeability µ4
Saturation induction Bs 0.58 T
Density 7.7 g/cm3
Curie temperature °C 200
Crystallisation temperature Tx °C 530
Specific electrical resistance 1.4 µΩm
These values are measured under laboratory conditions.
In other situations results may differ; please read our Guarantee.

Mu-ferro foil (3284)

Mu-ferro foil technical drawing
Technical drawing

Mu-ferro tape with conductive adhesive (3208)

Mu-ferro foil conductive adhesive technical drawing
Technical drawing

Mu-ferro tape with standard adhesive (3305)

Mu-ferro foil standard adhesive technical drawing
Technical drawing

Mu-ferro foil with 0.15 mm thick, white insulation layer (3408)

Mu-ferro foil white insulation layer technical drawing
Technical drawing

Mu-ferro foil with 0.22 mm thick, black insulation layer (3468)

Mu-ferro foil black insulation layer technical drawing
Technical drawing

Standard part numbers

Specification Part number  
3284 3208 3305 3408 3468 6800-SD
Structure Mu-ferro foil structure  Mu-ferro foil conductive adhesive structure  Mu-ferro foil standard adhesive structure Mu-ferro foil white insulation layer structure Mu-ferro foil black insulation layer structure Mu-ferro foil structure
Product description Mu-ferro foil Mu-ferro tape with conductive adhesive Mu-ferro tape with standard adhesive Mu-ferro foil with 0.15 mm thick, white insulation layer Mu-ferro foil with 0.22 mm thick, black insulation layer Mu-ferro foil 0.12 mm
Foil material Mu-ferro Mu-ferro Mu-ferro Mu-ferro Mu-ferro Mu-ferro 
Surface Silver colour Silver colour Silver colour Silver colour Silver colour Silver colour 
Foil thickness 0.023 mm 0.023 mm 0.023 mm 0.023 mm 0.023 mm 0.12
Total thickness 0.023 mm 0.048 mm 0.048 mm 0.175 mm 0.243 mm 0.12
Adhesive No adhesive Synthetic conductive resin Synthetic conductive resin No adhesive No adhesive No adhesive (on request)
Adhesive performance - 4.5 N/cm 4.5 N/cm - - -
Tensile strength - - - - - -
Temperature resistance - - - - -  
El. resistance through adhesive - 0.003 ohms 0.003 ohms - - -
Standard roll widths (mm)* max. 50 mm max. 50 mm max. 50 mm max. 50 mm max. 50 mm Max. 470 mm
Roll lengths* max. 100 m max. 100 m max. 100 m max. 100 m max. 100 m max.100 m
These values are measured under laboratory conditions.
In other situations results may differ; please read our Guarantee.
 

*Other roll widths/lengths on request


For a larger width we can recommend the tape the Mu-ferro shielding foil. The foil is a magnetic shielding sheet and made of a high permability material laminated on a PET film. The sheets are easy to handle and because of the thinness of 0.12 mm the material is very flexible.
The Mu-ferro shielding foil 6800-SD can be made on roll or sheet. Standard without adhesive but optional on request

  • On roll of max. 470 mm and a max. roll length of 100 m.
  • Sheets of max. 610 x 460 mm

Click here for more information.

 Mu-ferro shielding foil 6800 - SD

Would you like to...

To get a quotation for Mu-ferro foil & tape within 24 hours fill in the form below.

Select an option:
3284 : Mu-ferro foil
3408 : Mu-ferro foil with 0.15 mm thick white insulation layer
3468 : Mu-ferro foil with 0.22 mm thick black insulation layer
3208 : Mu-ferro tape with conductive adhesive
3305 : Mu-ferro tape with standard adhesive
6800SD : Mu-ferro 0.12 in maximal dimensions of 610 x 470 mm
Specify the width of the foil or the tape in mm. 6800-SD maximal width 470 mm
Length of the tape in meters.
* Note: The red blocks are required