Magnetic Field - Shielding Film MCF5

Magnetic field + HF + LF shielding film made from an amorphous cobalt alloy

MCF5 is a magnetic shielding film made from an amorphous cobalt alloy for shielding of low-frequency alternating magnetic fields. Also shields low-frequency electric alternating fields (LF) and high-frequency fields (HF). Because MCF5 has a width of only 5 cm, its recommended for shielding smaller areas, e.g. in electronic applications or for cables.

In comparison with MUMETALL® our MCF5 has many advantages: MUMETALL® is soft and sensitive, on bending, to shocks and on processing it looses the attenuation very fast. MCF5 stays flexible but hard even at small bending radii. The attenuation remains constant even at high mechanical stress. MCF5 can easily be cut with scissors.

Weight Price
Linear Metres/Width 5cm-MCF5MCF5 0.5 kg £16.50

Technical Specification

Width: 5 cm
Length: 1 metre,
Also available in 20 metre and 100 metre rolls
Attenuation LF magnetic field: 30 dB (97 %)
Attenuation HF: 40 dB at 1 GHz
Weight: 180 g/m²
Material thickness: 0.02 mm
Colour: Silver
Permeability: µ 4 = 25,000; µ max. = 100,000; Saturation polarization: 0.55 T
Composition: Co69, Fe4, Mo4, Nb1, Si16, B7.

Delivery Time: 2 - 3 working days

Warning: The cutting edges are sharp as a knife! There is no self ashesive version available. However, bonding is easily possible: Please use a double sided adhesive tape e.g. Carpet adhesive tape with 50 mm width or a wider double-sided adhesive tape. Otherwise a commercial surface contact adhesive can be used (e.g. UHU, PATTEX).

Due to the conductive surface this material can be contacted and grounded easy to shield low frequency (LF) electric fields.

Shielding attenuation
The shielding attenuations are regularly tested in our own laboratory, HF due to ASTM D4935-10, the LF magnetic field due to ASTM A698/A698M-07. You'll find the test report above.

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