Common Mode Choke (CMC), also known as common mode inductor, is an electronic component used to filter out common mode electromagnetic interference. Its working principle is to use two coils with opposite directions and the same number of turns, usually wound on a closed magnetic ring. When the working current flows through these two coils, the magnetic fields generated by them cancel out each other, making the normal signal current mainly affected by the coil resistance. However, when there is a common mode current flowing through the coil, due to the directionality of the common mode current, the coil will exhibit high impedance, resulting in a strong damping effect, attenuating the common mode current, and achieving the purpose of filtering.

Overview of Market Development

In recent years, with the rapid development of the electronics industry, the demand for common mode chokes has continued to be strong, and their market size is also steadily growing. According to our research data, the global common mode choke market revenue is estimated to be $620 million in 2024, an increase of 4.45% from 2023, and is expected to continue to increase to $799 million by 2029. The CAGR for 2024-2029 is estimated to be 5.20%.

Segmented Market Analysis

From the perspective of product types, common mode chokes can usually be divided into two categories based on their structure and usage purposes: aggregated and non-aggregated. Among them, the aggregated common mode choke dominates the market, with an estimated market share of 62.49% in 2024.

From the perspective of downstream applications, common mode chokes are widely used in electronic devices, including PC, smartphone, LCD TV, and so on. Among them, the PC segmentation field holds the largest share in the downstream application market, with an estimated 30.49% in 2024. The common mode choke is used in computer switching power supplies to filter common mode electromagnetic interference signals and plays an EMI filtering role in board design, used to suppress electromagnetic wave radiation emissions generated by high-speed signal lines.

Source: www.globalmarketmonitor.com

Analysis of Market Competition Pattern

From the perspective of market competition, the concentration of the global common mode choke market is relatively low. Data shows that in 2023, the total revenue of the industry's top 3 enterprises in the common mode choke market was $151.65 million, with a total revenue share of only 25.53%. The top 3 companies are Murata Power Solutions, Wurth Electronics, and Wurth Electronics. In 2023, these three companies shared a common choke market revenue share of 12.06%, 6.83%, and 6.64% in the global market, respectively.

Companies	Market Revenue (Million USD)	Market Share
Murata Power Solutions	71.64	12.06%
Wurth Electronics	40.57	6.83%
TDK Electronics	39.44	6.64%
Top3 Companies	151.65	25.53%

Source: www.globalmarketmonitor.com