1K107 Rectangle Nanocrystalline Core for Efficient Transformers

 

Nanocrystalline cores offer a superior combination of high permeability, high saturation flux density, and low core loss compared to amorphous cores and traditional materials like ferrite and silicon iron. Nanocrystalline cores excel in high-frequency applications like EMC filters and power supplies, providing higher efficiency and smaller sizes due to their low energy losses and high saturation flux density. Amorphous cores are often preferred for low-frequency, high-efficiency applications like power distribution transformers, while traditional materials can be a cost-effective alternative for less demanding applications.

 

 

Nanocrystalline cores vs. Amorphous cores

 

Nanocrystalline:

• Best for: High-frequency applications, high-power handling, and high saturation flux density.
• Advantages: Higher saturation flux density than amorphous cores, leading to smaller component sizes. They also have better thermal stability and higher curie temperatures, making them suitable for higher operating temperatures.
• Disadvantages: Can be more expensive than amorphous cores. They can also be susceptible to saturation in certain high-current applications without proper design.

 

Amorphous:

• Best for: Low-frequency, high-efficiency applications where low core loss is the top priority.
• Advantages: Very low core losses compared to traditional materials.
• Disadvantages: Lower saturation flux density compared to nanocrystalline cores, meaning larger core sizes for a given power handling capability.

 

 

Nanocrystalline cores vs. Traditional materials

 

Nanocrystalline:

• Best for: High-frequency applications where efficiency and size are critical.
• Advantages: Much higher permeability, lower core losses, and higher saturation flux density than ferrite and silicon iron. This allows for smaller components, lower turns of wire, and higher efficiency.
• Disadvantages: Higher initial cost compared to silicon iron.

 

Traditional materials:

• Ferrite:

Best for: High-frequency applications where high permeability is not the primary concern.

Advantages: Cost-effective for certain applications.

Disadvantages: Lower permeability and higher core losses compared to nanocrystalline cores, especially at higher frequencies. Lower curie temperature.

 

• Silicon iron:

Best for: Low-frequency, cost-sensitive applications where size is not a major constraint.

Advantages: Lower material cost.

Disadvantages: Higher core losses, especially at higher frequencies, compared to amorphous and nanocrystalline materials.

 

 

Key properties of Rectangle Nanocrystalline Core

 

• High permeability: Increases inductance and reduces the number of turns needed, leading to smaller components.
• High saturation flux density: Allows for smaller core sizes for a given power rating.
• Low core loss: Reduces energy consumption and heat generation.
• High curie temperature: Enables operation at higher temperatures without performance degradation.
• Low magnetostriction: Results in lower audible noise.

Nanocrystalline Core specification

CORE DIMENSION
OD(mm)	ID(mm)	L(mm)	H(mm)
28	12	60	10
35	22	90	18
40	25	92	15
42	25	95	15
45	28	100	20
50	28	120	20
65	35	125	20
70	45	143	25
80	58	135	25
95	70	146	25
124	100	268	25
130	100	310	25
160	124	350	25
180	145	385	25
200	175	435	25
210	180	410	25
255	215	470	25
Note: Additional sizes can be customized to meet specific customer requirements.