Step Up Your EMC Protection Game with Nanocrystalline Cores in Common Mode Chokes

Step Up Your EMC Protection Game with Nanocrystalline Cores in Common Mode Chokes

When it comes to keeping electronic devices working at their best, managing electromagnetic interference (EMI) and radio frequency interference (RFI) is a top priority. That's why common mode chokes are increasingly being used by designers to manage this problem. But not all common mode chokes are created equal. The right core material can make a big difference in achieving the best performance.

In this article, we'll take a look at the role of common mode chokes in controlling EMI and RFI, and why nanocrystalline cores are quickly becoming the material of choice for these applications.

Why Common Mode Chokes Matter

Common mode chokes are passive electronic components designed to filter out unwanted electromagnetic interference. They do this by reducing common mode noise, which is noise that appears on both the power and signal lines of a circuit. This type of interference can cause a range of issues, from disrupted signal transmission to damage of sensitive electronic components.

This is where common mode chokes come in. They work by creating a magnetic field that blocks common mode noise while allowing normal signal transmission to pass through. By using a magnetic core in the design, the common mode choke increases its inductance, which in turn improves its ability to filter out common mode noise.

Over the years, common mode chokes have been made with various core materials, including ferrite and powder iron. Although these have worked well for many applications, they have some limitations. This is where nanocrystalline cores come in.

Why Nanocrystalline Cores are the Key to Better Common Mode Chokes

Nanocrystalline cores are a relatively new player in the world of common mode chokes, but they are quickly proving their worth. Compared to other core materials, such as ferrite and powder iron, nanocrystalline cores offer several advantages.

1. Higher permeability: Nanocrystalline cores have higher permeability ratings than other core materials. This means they are more effective at blocking common mode noise while allowing desired signals to pass through.

2. Wider frequency range: The high permeability of nanocrystalline cores allows them to effectively filter common mode noise over a wider range of frequencies. This makes them ideal for a wider range of applications, from power supplies to audio and video equipment.

3. Improved temperature stability: Nanocrystalline cores are more thermally stable than other common mode choke cores. They retain their magnetic properties over a wider range of temperatures, which means they can withstand higher operating temperatures without losing performance.

4. Smaller size: Because of their high permeability, nanocrystalline cores can be made smaller than other core materials without sacrificing performance. This makes them ideal for applications where space is at a premium.

5. Lower power loss: Nanocrystalline cores have lower hysteresis losses than ferrite and powder iron cores. This means less energy is lost as heat, which results in higher efficiency and longer component life.

Putting Nanocrystalline Cores to Work in Common Mode Chokes

With all of these benefits, it's no wonder that nanocrystalline cores are quickly becoming the material of choice for common mode choke designers. Whether you are designing a power supply, an audio device or any other electronic product that requires EMI and RFI protection, using a common mode choke with a nanocrystalline core is a smart choice.

At Precision, we offer a range of common mode chokes with nanocrystalline cores that are optimized for a variety of applications. Our world-class manufacturing capabilities and deep technical expertise ensure that our products meet the most demanding requirements for performance, reliability and quality.

So if you are looking to step up your EMC protection game, choose Precision and nanocrystalline cores for your common mode choke needs. Contact us today to learn more about our products and services.