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MAGNAPERM®
High Permeability Cores [hide]
Applications:  
  • EMI Common Mode Filtering
  • Telecommunications and Data Communications Interface Transformers
  • High Accuracy Current and Pulse Transformer
  • Ground Fault Protection Devices
 

MAGNAPERM® cores are specifically designed to exhibit a flat or "sheared over" dc hysterisis loop resulting in the following important benefits:

  • High Initial Permeability (>72,000 at 1 kHz)
  • High Permeability Over A Wide Range of Operating Frequencies
  • High Attenuation - for excellent suppression of electromagnetic noise
  • Low Profile - enabling weight and volume reduction of up to 50%
  • Low Loss - resulting from micro-thin Metglas® ribbon (18 µm)

 


Magnetic Properties

Saturation Flux Density (Tesla) 0.57
Permeability (µ @ 1kHz, 2.0 mA/cm) >72,000
Saturation Magnetostriction (ppm) <<1
Electrical Resistivity (µ-cm) 142


Physical Properties

Ribbon Thickness (µm) 18
Density (g/cc) 7.59
Thermal Expansion (ppm/°C) 12.7
Crystallization Temperature (°C) 550
Curie Temperature (°C) 225
Continuous Service Temperature (°C) 90
Tensile Strength (MPa) 1k - 1.7k
Elastic Modulus (GPa) 100-110
Vicker’s Hardness (50g load)

960

Core Specifications For Ordering

Material Characteristics (Select for chart image)

 

 
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