Nanocrystalline Fesib Strip for Transformer Iron Core

• Product Type: Strip
• Material: FeSi
• Carbon Content: Low Carbon
• Transport Package: CTN, Plywood Case, Wooden Case
• Specification: 0.035mm
• Trademark: Ohmalloy
• Origin: China

Product Description

Application area:

1. Switch power transformer and Pulse transformer iron core
2. Power transformer , precision current mutual inductor iron core
3. Leakage protection switch mutual inductor iron core
4. Filtering inductance, storage inductance, the electric reactor iron core
5. EMC common mode inductance and differential mode inductance iron core
6. Saturable reactor, magnetic amplifier, Spike killer, Pulse Compressor iron core and magnetic bead

Features:

1. High Saturation magnetic induction - reduce transformer volume
2. High magnetic permeability low coercive force- improve transformer efficiency, mutual inductor sensitivity, reduce coil distribution parameters
3. Low loss- reduce transformer temperature rise
4. Good temperature stability -  under 130ºC for long-term work
5. Lower price -  has the best cost performance of all the metal soft magnetic material

Typical Properties
Physical properties of Nanocrystalline alloy
 

Saturation magnetic induction (Bs)	1.25T	Hardness (Hv)	880
Curie temperature (TC)	560ºC	Density (d)	7.2g/cm3
Crystallizing temperature( Tx)	510ºC	Resistivity(r)	90mW-cm
Saturation magnetostriction coefficient  (ls)	<2×10^-6	Continuous operating temperature range	-55-130ºC

Magnetic properties of Nanocrystalline alloy
 

Product Type	Transverse magnetic annealing	No magnetic annealing	Longitudinal magnetic annealing
Initial permeability	>2×10^4	>8×10^4	>1×10^4
Maximum permeability	>5×10^4	>45×10^4	>50×10^4
Residual magnetic induction	<0.2 T	0.6 T	>0.85 T
Coercive force	<1.8A/m	<0.8A/m	<1.8A/m
Iron loss P(20kHz, 0.5T)	<30W/kg	<50 W/kg	<90W/kg
Iron loss P(100kHz, 0.3T)	<150W/kg	<150 W/kg	<300W/kg
Iron loss rate(-55°C -125C )	<15%	<15%	<15%

The comparison between Nanocrystalline alloy and Permalloy iron alloy
 

Basic parameter	Superfine crystal iron core	Permalloy iron alloy (1J85)	Ferrite
Saturation magnetic induction  Bs(T)	1.25	0.75	0.5
Residual magnetic induction Br(T)	0.2~0.9	-	0.20
Saturation magnetostriction coefficient (×10^-6)	<2	<2	4
Resistivity (mmW-cm )	80	56	10^6
Curie temperature /ºC	570	400	<200
Initial permeability μ0(Gs/Oe)	>8×10^4	>8×10^4	-
Maximum permeability μm(Gs/Oe)	>50×10^4	60×10^4	4×10^4
Coercive force Hc (A/m)	<2	<1	6
Iron loss (20KHz,0.5T) (W/Kg)	<35	-	No
Iron loss (50KHz,0.3T) (W/Kg)	<50	-	No