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Fe-Based 1K101 Amorphous Ribbon

P/N: MLAR-2131

Product Detail

Product Tags


Product Name Fe-Based 1K101 Amorphous Ribbon
P/N MLAR-2131
Width 5-80mm
Thickness 25-35μm
Saturation magnetic induction 1.56  Bs (T)
Coercivity  2.4  Hc (A/m)
Resistivity 1.30 (μΩ·m )
Magnetostriction coefficient 27 λs (ppm)
Curie temperature 410  Tc (℃)
Crystallization temperature 535  Tx (℃)
Density 7.18 ρ (g/cm3)
Hardness 960  Hv (kg/mm2)
Thermal expansion coefficient 7.6  (ppm/℃)


● Mid-frequency power transformer core, distribution transformer core

● Toroidal uncut cores for smooth filtered output inductors and differential mode input inductors for switching power supplies

● Noise suppression in car stereos, toroidal uncut cores for car navigation system chokes

● Ring-cut cores for PFC power factor correction in air conditioning and plasma TVs

● High frequency rectangular cut cores for output inductors and transformers for switching power supplies, uninterruptible power supplies, etc.

● Toroidal, uncut cores for IGBTs, MOSFETs and GTOs pulse transformers

● High power density variable speed motors, stators and rotors for generators


● Highest saturation magnetic induction among amorphous alloys-reduce components size

● Low coercivity- Improve components efficiency

● Variable Magnetic flux rate – By different core heat treatment processes to meet the requirements of different applications

● Good temperature stability- Can work at -55°C -130°C for long periods of time

● Cores used in transformers are 75% more energy efficient than S9 silicon steel cores in terms of no-load losses and 25% more energy °C efficient in terms of load losses

● Short strip production process and low production cost (see Fig. 1.1)

● The strip has a special microstructure which determines its excellent magnetic properties (Fig. 1.2) and performance stability.

● The composition and process parameters of the strip can be quickly adjusted to meet different usage requirements.

● For new energy solar grid-connected inverters


Figure 1.1 Amorphous ribbon production process


Figure 1.2 Bs versus Hc of different soft magnetic materials

Material comparison

Performance Comparison of Fe-based amorphous alloys with cold-rolled silicon steel

Basic parameters

Fe-based amorphous alloys

Cold-rolled silicon steel(0.2mm)
Saturation magnetic induction Bs (T)



Coercivity Hc (A/m) 2.4   25
Core losses(P400HZ/1.0T)(W/kg) 2 7.5
Core losses(P1000HZ/1.0T)(W/kg) 5 25
Core losses(P5000HZ/0.6T)(W/kg) 20 >150
Core losses(P10000HZ/0.3T)(W/kg) 20 >100
Maximum magnetic permeability (μm 45X104 4X104
Resistivity (mW-cm) 130 47
Curie temperature(℃) 400 740

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