For EMI-noise suppression in Switched-Mode Power Supplies, Frequency Inverters and many other applications, tape-wound cores made of iron-base nano-crystalline 1K107 offer significant advantages in volume and performance. The material property, such as high initial permeability in graded permeability levels between 30 000 and 100 000, high saturation flux density, low core losses and an extended operational temperature range.

Common mode chokes with nano-crystalline cores offer the following features:

1, High inductance with a low number of turns and small winding capacities.

2, Broadband insertion loss curve with good damping performance over a wide frequency band.

3, Small choke size for volume- and weight optimized solutions.

Core information:

All below listed cores are inserted in PBT or PA66   

cases and fixed with silicon rubber to              

achieve good magnetic property and good           

mechanical protection. Our plastic cases are            

suitable for direct winding. Epoxy coated core           

design is available on the further request.

Material data of AM-EMC-XXX :

Saturation flux density....................... 1.2T

 Specific electrical resistance…………130μΩ-cm

Curie temperature…………………..… 560 °C

Upper temperature limit

(continuous operation)……………… 130 °C

Permeability μ3 (at 10 kHz)………….. 30 000 to 100 000 Permeability u(at150kHz)…………….8000 to20000

Core standard sizes:

Attention: All the data listed in this catalogue are got from optimum-annealed samples. When these ribbons are made into cores, there may be some variation of the property according to processing technique. All the data here are only for references, but not for guaranty of any order. Cores with other specifications can be provided concerning to customer’s demand.