UCR Flux Concentrator

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The UCR3.5 is a soft ferromagnetic shield featuring superior material characteristics such as high linearity and very low hysteresis. The shield is designed for PCB based planar current sensing in combination with a magnetic field sensor, i.e., Hall sensor, AMR sensor and a current conductor. The UCR3.5 shields 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. PML collaborates for current sensor applications with Maglab (representative & development partner) GmbH (For design optimization and simulation) and Melexis GmbH (Qualified automotive sensor supplier).

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


UCR_3.5_std_version_1 UCR_3.5_std_version_2

All dimensions are in mm


  • ±50Amps Current Range
  • Highly Linear
  • Very Low Hysteresis
  • Up to Ø 6mm Conductor


  • Contactless Current Sensing
  • Smart Metering
  • Power Converters
  • Solar Industry
  • Battery Management
  • Hybrid Electric Vehicle

Material Grade:

48% Ni-Fe


0.5 & 0.8 mm


Other Thickness and Material grades available on request.