We can make customized nanocrystalline cores with a variety of shapes and very big size. The mean path length (Le) of our nanocrystalline oval cores can be as long as 100 cm or even more. The oval core below is properly wrapped by crepe paper after annealing and epoxy harden, while other encapsulations are also avaliable.

Big Size Nanocrystalline Oval Core
Basic Parameters
Part Number | CCL540-100-15-25A |
Description | Big Size Nanocrystalline Oval Core |
Core Materail | Nanocrystalline 1k107 |
Saturation Magnetic Induction (Bs) | 1.25 T |
Crystallization Temperature (Tx) | 500 ℃ |
Curie Temperature (Tc) | 570 ℃ |
Density (ρ) | 7.25 g/cm3 |
Resistivity | 130 μΩ.cm |
Filling Coefficient (k) | > 0.75 |
Weight | Approx. 2700 g |
Kind of Insulation | Crepe Paper Wrapped |
Magnetic Test
- Treated by transverse magnetic field
- Test Conditions: N1:N2 = 1:1, Exciting Current = 50 Hz / 2 A, Exciting Voltage: as required
Appearance
- The appearance of core must be clean and no oxidation and no fragments.
- The performance index of core must conform to the requirements and pro-environment.
External Diagram

Dimensions (mm) | L1 | L2 | W1 | W2 | H |
Nominal Size | 570±1.0 | 540±1.0 | 130±0.5 | 100±0.5 | 25±0.2 |
Finish Size | ≤575 | ≥535 | ≤133 | ≥97 | ≤28 |
Big Size Nanocrystalline Oval Core