
High Initial Permeability Nanocrystalline Core
Similar to permalloy, our nanocrystalline cores have high initial permeability, but the price is much lower, as the material is based on iron. Due to excellent magnetic properties, our cores are widely used for miniature current transformers, inductors, and so on. With more than 15 years experience, we can design and manufacture customized cores, and provide samples with a couple of days.
Features
- ID=77mm, OD=86mm, H=10mm
- Le: 25.6cm, Ac: 0.34cm2, Weight: 85g
- AL value ≥19μH@1kHz/0.3V
Specifications
Part Number | CP77-86-10A |
Description | High Initial Permeability Nanocrystalline Core |
Structure | Toroidal |
Material | Fe-based 1k107 Nanocrystalline |
Finish Type | Brown Plastic Box |
Saturation Magnetic Induction (Bs) | 1.25 T |
Crystallization Temperature (Tx) | 500 °C |
Curie Temperature (Tc) | 570 °C |
Density (ρ) | 7.20 g/cm3 |
Resistivity | 130 μΩ.cm |
Filling Coefficient | ≥ 0.75 |
Mean Magnetic Path (Le) | 25.6 cm |
Net Area (Ac) | 0.34 cm2 |
AL Value | ≥ 19 μH |
Test Conditions | 1 kHz / 0.3 V @ 1Ts |
Weight | Approx. 85 g |
Accept Customized | Yes |
Dimensions

Dimensions (mm) | ID | OD | H |
Nominal Size | 77±0.5 | 86±0.5 | 10±0.2 |
Finish Size | 73.7±0.2 | 90.4±0.2 | 15.1±0.3 |
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High Initial Permeability Nanocrystalline Core