The AMC1R5-L is an amorphous Fe-based soft ferromagnetic core designed for contactless current sensing applications. It is used in combination with a magnetic field sensor, i.e., Hall sensor which is placed in the airgap.


The core features superior material characteristics leading to high bandwidth, high linearity, low core losses, and very low hysteresis.

Magnetic Characteristics

Parameter Typical Value Unit
Relative Permeability 100.000 a.u.
Saturation Flux Density 1.4 T
Hysteresis 6 A/m
Curie Temperature 410 degC


(all dimensions: mm)

Airgap Length AMC1R5-(L)
3.5mm (standard) L=3.5
1.7mm L=1.7