Mu-ferro foil & tape

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

Mu-ferro foil (3284)

Mu-ferro tape with conductive adhesive (3208)

Mu-ferro tape with standard adhesive (3305)

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

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

Standard part numbers

Specification	Part number
	3284	3208	3305	3408	3468
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
Foil material	Mu-ferro	Mu-ferro	Mu-ferro	Mu-ferro	Mu-ferro
Surface	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
Total thickness	0.023 mm	0.048 mm	0.048 mm	0.175 mm	0.243 mm
Adhesive	No adhesive	Synthetic conductive resin	Synthetic conductive resin	No adhesive	No adhesive
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
Roll lengths*	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 SD shielding foil 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

More information about the Mu-ferro shielding foil.