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What to Know About Amorphous Cores?

What to Know About Amorphous Cores?


Amorphous Coresare used in almost every piece of electronic equipment we know about. These are found in transformers, Charging devices, and even components of computers. They are often used as chokes, a central core with multiple insulated wires wound around it to make an efficient magnetic core.

Though we have different types of cores, including amorphous, ferrite, silicon steel, non-crystalline, and more, we will mainly focus on the Amorphous Cores in this article. Dive into this comprehensive guide and learn everything you should know about these cores!

What to Know About Amorphous Cores?

Amorphous Cores are made of metallic glass metallic without any well-defined crystalline form. Depending on their amorphous structure, these cores offer improved electric conductivity, efficient functioning, higher permeability, and increased magnetic density over a diverse range of temperatures usually not tolerated by other types of cores due to their low Curie temperatures.

These cores are made from the process of solidification of the molted metal. Amorphous Cores are actually soft magnetic materials boasting stacks and stacks of silicon steel lamination. Their notable properties include high electric resistivity, relatively improved mechanical characteristics, and excellent magnetic and electromagnetic properties.

Moreover, you can find these cores in multiple different types, including E-core, C-core, Amorphous Toroidal core, Shell core, Cut core, Block core, Planner core, U-core, Disc core, T core, and many more, mainly distinct in shape. This factor alone can contribute to changing the properties of the core, making some types more suitable for one application and some for another.

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Why Use Amorphous Cores?

Once you have gone through all the applications, let's now have a look at the key reasons why you should consider using Amorphous Cores!

Reduced Core Loss

Core losses are referred to as the dissipation of energy in the form of heat when the core is exposed to alternating magnetic fields. Amorphous Cores are found to have relatively lower core loss depending on their structural properties. However, you can use them for optimal energy efficiency, especially in applications involving continuous processing.

Broad Frequency Range

Unlike the typical magnetic or crystalline cores, these have a broad frequency range. They aren't limited to the specific frequency bands. These are the main reasons why amorphous crystalline cores are considered versatile in multiple applications.

Reduced Carbon Dioxide Emission

According to the analysis shared by the United Nations, transformers alone contribute to the overall carbon dioxide emission significantly. Their fair share in the emission is around 730 million tons per year.

Owing to the energy efficiency of the Amorphous Cores, you can significantly reduce your industry's carbon footprint by minimizing the production and emission of carbon dioxide.

Noteworthy Initial Permeability

Another important aspect is the considerable initial permeability offered by the Amorphous Cores. They are pretty sensitive to mere magnetic field changes. This property is helpful in inductors, sensors, and transformers where swift magnetic flux changes must be accommodated.

10 Most Common Applications of Amorphous Cores

Amorphous Cores are made to be used in diverse applications owing to their low connectivity, low loss, and higher vulnerability. Some of the most common applications of their usage include:

1. Audio Systems

Amplifiers are undoubtedly a key component of any audio system, and Amorphous Cores, in turn, are important components of amplifiers. These are mainly involved in amping up the received signal and submitting it to the speaker or any other output source. By amping up, we mean increasing the signal amplitude, so you can observe a significant increase between input and output signal amplification.

How much an amplifier amplifies the signals depends entirely on the gain, i.e., the ratio of output specifications, like current and voltage, to that of the input.

2. Power Supplies

Soft magnetic material is usually preferred in power supplies. A power supply is a source electronic device that transforms any form of energy into an electrical one and supplies it to an electric load as output. Its function revolves around converting the received energy form, mostly the current itself, into the required frequency, current, and voltage to power the entire load side.

3. Medical Equipment

When it comes to medical equipment, safety stands as a key factor to consider. That said, amorphous materials are a noteworthy combination with Toroidal core, C-core, or Black core.

4. Magnetic Sensors

These cores are also used in magnetic sensors like position, magnetic field, and current. Their high sensitivity to any magnetic field change around them makes them ideal for the purpose.

5. Transformers

Another important application of the Amorphous Toroidal core is distribution and power transformers. With them, you get to enjoy higher efficiency and minimized core loss.

On the other hand, typical solutions, like silicone steel cores, won't only cost you a lot but also have reduced efficiency and increased power loss due to heat generation. System heating remains another incurable issue.

6. Current Transformers

You can also use these cores in current transformers to precisely measure the distribution systems' electric currents. Their extent of accuracy and the linearity of performance over increased and decreased temperature makes them suitable for this application.

7. Magnetic Shielding

Telecommunication equipment and medical devices need magnetic shielding for safe and accurate working. Amorphous Cores can provide this shield against electromagnetic or radiofrequency interferences.

8. Noise Filtering

Noise can be disturbing or disrupting, affecting the output signal and reducing its reception on the receiver side. However, with the noise filtering power of the amorphous chokers installed in chokers and inductors, you can ensure to get rid of these unwanted disturbances.

9. EV Charging

Electric vehicles will take over the world in the coming years. Every vehicle will get replaced by its EV version, and so will the need for EV charging will arise. What sets them apart from other cores is their ability to minimize the core losses and save as much power as possible.

10. Pulse Transformer

High-speed and in-time communications demand precise time management with minimum disturbance and pulse shaping. This task can be done well by the Amorphous Cores, which ensure swift transmission and resistance against distortion.

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Difference Between Amorphous and Non-Crystalline Cores?

Now that you have explored the key applications of the amorphous solids' let's have a look at the key differences between the amorphous and nanocrystalline cores!

Undoubtedly, both competitors are used diversely in applications; both are structurally opposites. One consists of well-defined crystalline forms, while the other is completely non-crystalline on the nanoscale level. But that’s only the structural aspect, other differing points include:

1. Magnetic Characteristics

Amorphous Cores tend to have higher initial permeability, quickly responding to minimal changes in the magnetic field. So, you can find them ideal in magnetic sensing. On the other hand, nanocrystalline cores have higher permeability throughout their work, so these are ideal for usage in highly sensitive sensing.

2. Frequency

Nanocrystalline and Amorphous Cores have high-frequency applications, but the former is often considered the best pick. It's because nanocrystalline cores are the advanced version of cores that have revolutionized the industry with their exceptional perks and features, as they combine both the specs of amorphous and crystalline cores.

3. Application

Amorphous Cores find their applications in noise-filtering inductors, power transformers, distribution transformers, etc. The nanocrystalline cores work more effectively in the inductors for power electronics, high-frequency transformers, etc.

Where to Find the Best Amorphous Cores?

The next question in your mind must be where to get the best Amorphous Cores from. You can find multiple manufacturers in the market, each promising to offer the best quality and making the choice pretty difficult. However, if you are going through the same, TranSmart has covered you with its exceptional quality, specs, and features boasting products.

Whether you need to get a custom amorphous C-core metal core, amorphous magnetic core, Amorphous Toroidal core, or a simple amorphous core, they have everything to offer you. The best part about their products is that you can obtain them in bulk and at a reasonable price.

Besides these, they also offer an array of other core products, including nanocrystalline cores, silicone steel cores, Mumetal cores, and more. For more information, please visit their website.


Amorphous Cores are structurally non-crystalline, but their properties are similar to the nanocrystalline amorphous solids. The former finds application in various industries: electronics, power transmission, and more. Depending on their amorphous nature, they are considered second best after the nanocrystalline cores.

That was all about the amorphous magnetic cores, their applications, reasons for using them, and key differences between the amorphous and nanocrystalline cores. Hope you found this info helpful. Hope you found this article worth reading! Let us know in the comments if you have any queries relevant to amorphous cores, we will get back to you as soon as possible. 

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