The laminated U-shield is a soft ferromagnetic shield featuring superior material characteristics such as high linearity and very low hysteresis.


The shield is designed for planar current sensing in combination with a magnetic field sensor, i.e., Hall sensor, AMR sensor and a busbar conductor. The LU-shield protects the sensor from parasitic magnetic fields caused by nearby conductors or other magnetic field sources while at the same time it enhances sensitivity and signal-to-offset ratio of the sensor. Thanks to its laminated design it is suitable for high-speed applications.

Magnetic Characteristics

Parameter Typical Value Unit
Relative Permeability 100.000 a.u.
Initial Relative Permeability 7000 a.u.
Saturation Flux Density 1 T
Hysteresis 2.8 A/m
Curie Temperature 450 degC


Material Specifications Laminations Ni content
Laminations and Nickel content 0.5mm 48%