EMC countermeasure products: TDK launches a new small common mode choke for automotive CAN-FD

  • 2021/04/06

  • Achieved good signal mode transfer characteristics

  • Compact structure, small size, can work in a wide temperature range of -40℃~+150℃

TDK Corporation (TSE:6762) has developed the new ACT1210D series common mode choke coils for automotive CAN-FD, and will start mass production in April 2021.

Automotive local area network is roughly divided into the following four systems: body system, safety system, power system, multimedia/information and communication system. This product supports CAN and CAN-FD, and the data transmission speed is 5 times that of 5 Mbps. Currently, CAN is the most widely used standard for body and other systems, with a maximum data transfer speed of 1 Mbps.

While meeting CiA and IEC standards, the ACT1210D series common mode choke coils also have a compact low-profile size (3.2(L) x 2.5(W) x 2.5mm(H)) and have noise suppression capabilities. The unique structural design realizes the signal mode transmission characteristic (Ssd21) and improves the communication quality. The manufacturing process involves highly automated and extremely sophisticated wire winding machines and employs a wire connection method of laser welding metal terminals to achieve high reliability.

In recent years, there has been an increasing need to process high-speed, high-volume camera footage in ADAS. TDK offers a broad lineup of automotive communication products and 1000BASE-T1 Ethernet standard products that provide optimal performance for these applications. In the future, TDK will continue to meet the needs of customers by providing comprehensive product services of common mode choke coils for automotive communications.


  • LAN: local area network, dedicated communication network.
  • CAN: Controller Area Network, one of the communication protocols for automotive LAN.
  • CiA: CAN for Automation, industry organization for manufacturers of automotive and electronic components.
  • IEC: International Electrotechnical Commission, the International Organization for Standardization of all electrical, electronic and related technologies.

main application

  • CAN, CAN-FD system

Main Features and Benefits

  • Achieved good signal mode transmission characteristics and improved communication quality
  • Compact and low-profile size: 3.2(L) x 2.5(W) x 2.5 mm(H), convenient for saving space
  • Wide temperature range from -40°C to +150°C contributes to environmental protection design

About TDK Corporation

TDK Corporation, headquartered in Tokyo, Japan, is a world-leading electronics company providing electronic solutions for the smart society. TDK is established on the basis of proficiency in material science, and has always been at the forefront of technological development and embraces social changes with "technology that attracts the future". Founded in 1935, the company specializes in ferrite, a key material used in electronic and magnetic products. TDK's comprehensive and innovation-driven product portfolio includes passive components such as ceramic capacitors, aluminum electrolytic capacitors, film capacitors, magnetic products, high-frequency components, piezoelectric and protective devices, as well as sensors and sensor systems (such as: temperature and pressure, magnetic and MEMS sensors). In addition, TDK provides power supply and energy devices, magnetic heads and other products. Product brands include TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on market segments such as automotive, industrial and consumer electronics, and information and communication technology. The company has a network of design, manufacturing and sales offices in Asia, Europe, North and South America. In fiscal 2020, TDK's sales totaled US$13.3 billion and employed approximately 129,000 people worldwide.