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Common Mode Choke Core

Nanocrytalline CMC

Nanocrystalline core for common mode choke

Nanocrystalline core for common mode choke

Nanocrystalline cores for common mode chokes AL= 18.0 ~31.2uH @ 10KHz, ≤50mV

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Specification for Soft Magnetic Cores



Technical Characteristic & Graphs of Nanocrystalline ribbon

Material

Symbol

Unit

Value

Initial Permeability

μi

-

80000

Saturation Magnetic Flux Density

Bs

mT

1200

Pemanent Dlux Density

Br

mT

300

Corecivev Forece

Hc

A/m

<2.0

Curie Temp

Tc

°C

570

Electrical Resisitance

ρ

μΩ.cm

80

Density

d

kg/m3

7.25x103

Saturation Magnetostriction

λS

x10-6

2

  

NT40/55-25P Nanocrystalline Core Application for DC CMC:

General parameters & requirements
2x Irms =25A / 1x Irms=50A
U=1000V DC
Functional insulation between all windings
Tambient ~75°C, convection
IEC85 insulation classB and UL94 V0 for insulation parts
Operation temperature: -40°C ~ 120°C
HPAC 1500V AC 50Hz 1Sec between all windings

Core:  NT40/55-25P
Winding: 
W1/W2: Rdc=3.4mΩ+/-20%
W3: Rdc=1.7mΩ+/-20%






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