MPP Toroidal Core 026 PERM 39.9mm OD

Manufacturer's part number :


Manufacturer Magnetics Inc

Magnetics Inc

Description :

The 0055256A2 is a Toroid core manufactured using MPP material. Magnetics Molypermalloy Powder (MPP) cores are distributed air gap cores made from a 79% Nickel, 17% Iron, and 4% Molybdenum alloy powder for the lowest core losses of any powder core material. MPP cores possess many outstanding magnetic characteristics, such as high resistivity, low hysteresis and eddy current losses, excellent inductance stability after high DC magnetization or under high DC bias conditions and minimal inductance shift up to 2000 gauss under AC conditions. Applications for MPP cores include; Flyback Transformers, Buck/Boost and Power Factor Correction (PFC), Inductors, In-Line Noise Filters, High Q Filters, and Resonant Circuits.

The dimensions are ID min 23.3mm, OD max 40.77mm, HT max 15.4mm.

The short part number is 55256-A2

View our wide range of Cores

View our portfolio of Magnetic components

See all products from our supplier Magnetics Inc



  • Quote and availability


  • Lowest core loss of all powder core materials offered by Magnetics
  • Very high Curie temperature
  • Small shift in permeability with temperature
  • Small shift in saturation with temperature
  • Reversibility of temperature effects
  • Resistance to thermal shock
  • Resistance to mechanical shock and strain
  • Temperature stabilization for special applications
Features Similar products
Material MPP  

  similar products found

Search similar products
Shape Toroid  
Al (nH/T2) 35  
Permeability 26  
Le (mm) 98.4  
Ae (mm²) 107  
Ve (mm³) 10600