Nanocrystalline EMC Common Mode Choke Core Description
Nanocrystalline cores exhibit elevated permeability over an extended frequency range. They are utilised in common mode chokes that serve as EMI filters to reduce conducted common mode noise in power cables. Compared with conventional ferrite cores, the nanocrystalline EMI common mode choke core offers high inductance, effective filtering, compact size and fewer copper wire turns. It also demonstrates lower power consumption and high efficiency. The permeability of our nanocrystalline core can reach 60 000.

Nanocrystalline EMC Common Mode Choke Core Specifications
Saturation Induction (Tesla)
|
1.25
|
Maximum Permeability
|
> 600 000
|
Curie Temperature (°C)
|
> 570
|
Coercive Field Strength (A/m)
|
< 2
|
Crystallisation Temperature (°C)
|
> 500
|
Core Loss (20 kHz, 0.5 T), W/kg
|
< 25
|
Saturation Magnetostriction (ppm)
|
< 2
|
Core Loss (100 kHz, 0.2 T), W/kg
|
< 70
|
Residual Induction (Tesla)
|
0.5 – 0.8
|
Core Loss Variation (-50 ~ 130 °C)
|
15%
|
Initial Permeability
|
> 80 000
|
Operating Temperature Range
|
-50 ~ 130 °C
|

Part No.
|
Core
Dimensions
OD*ID*HT (mm)
|
Housing
Dimensions
OD*ID*HT (mm)
|
Effective Cross-Section AFe (mm²)
|
Mean Magnetic
Path Length lFe (mm)
|
AL at 10 kHz (µH)
|
SAMCM-01
|
21*15*8
|
24*12.3*11.5
|
18.7
|
56.5
|
20
|
SAMCM-02
|
25*20*10
|
27.3*17.5*12.3
|
19.5
|
70.6
|
27
|
SAMCM-03
|
26*16*10
|
28.5*14.8*13.2
|
32.6
|
66.6
|
25
|
SAMCM-04
|
30*20*10
|
33*17.5*13.5
|
39
|
78.5
|
48
|
SAMCM-05
|
32*20*10
|
35*17*13.5
|
46.8
|
81.6
|
56
|
SAMCM-06
|
40*25*10
|
44*22*15
|
58.5
|
102
|
20
|
SAMCM-07
|
40*25*15
|
44*22*18
|
85.5
|
102
|
80
|
Nanocrystalline EMI Common Mode Choke Core Applications
Nanocrystalline EMI common mode chokes are employed for EMI suppression in various applications involving electronic devices and electrical networks.