Date：2026-07-22 Categories：Product knowledge Hits：231 From：Guangdong Youfeng Microelectronics Co., Ltd
In this application, connecting a common mode inductor in series has always been an effective solution to address this high-frequency common mode interference. In addition to reducing the generation of common mode noise at the source, using common mode inductors is almost the most commonly used and cost-effective method to solve EMI problems.
The application principle is also very simple. Connecting common mode inductors in series to the circuit increases the impedance of the common mode circuit, causing the common mode current to be consumed and blocked by the inductors, thereby suppressing common mode noise in the circuit. diode
The Development Trend of Common Mode Inductors
Common mode inductors are mainly used in industries such as mobile communication, automotive, and industrial sectors, with mobile communication fields such as smartphones being the largest downstream market for common mode inductors. Although mobile communication is the largest downstream market for inductors, the value of medical aviation, automotive, and industrial inductors is higher, especially in the automotive field. With the further upgrade of transmission speed in automotive electronic systems, data interfaces are iterating at higher speeds, which also brings a lot of common mode noise problems, and the demand for common mode inductors is also increasing.
According to a survey by GlobalInfoResearch, the global market size for common mode inductors was approximately $668.5 million in 2021, and is expected to reach $916.7 million by 2028. Between 2022 and 2028, the demand for common mode inductors in the communication equipment and automotive industries will reach 4.6%.
In order to improve application transmission speed, common mode inductors have also shown a trend of high-frequency development. After the transmission speed increases, the frequency of high-frequency noise on the line will become higher, and there will be higher requirements for the suppression frequency of common mode inductance. Another trend is the common development trend of passive components, which is miniaturization, mainly to cope with the insufficient design space caused by the multifunctionality of terminal devices. For example, as smartphones have more and more functions, their PCB board space is becoming increasingly limited, requiring components to be smaller and smaller. diode
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