PRESS INFORMATIONEMC components
TDK offers common mode filter for automotive Ethernet
10BASE-T1S•••First in the industry* to achieve Class IV parasitic capacitance in the OPEN Alliance EMC test specification
for common mode chokes
High reliability achieved by laser bonding winding wires to metal terminals
Compliant with AEC-Q200 Rev. D

July 9, 2024
TDK Corporation (TSE:6762) announces that it has expanded its lineup of the ACT1210E Series (3.2 x 2.5 x 2.5mm - L x W x T) of common mode filters for automotive Ethernet communication 10BASE-T1S. Mass productionof this new common mode filter began this month, July 2024.
The new ACT1210E-131-2P-TL00 filter lowers the line-to-line capacitance by approximately 30% compared toconventional products. In the OPEN Alliance EMC test specification for common mode chokes, the part achieves
Class IV status with the lowest parasitic capacitance - an industry first. The common mode inductance at 100 kHz
is 130 µH, and the rated current is 70 mA.
The communication circuit of 10BASE-T1S has PHY, ESD suppression devices and other electronic components
in addition to common mode filters, each of which has its own capacitance. As total capacity increases so does
signal wave shape turbulence, which leads to disruptions in normal telecommunications. For this reason,engineers need to select components geared to low capacitance.
To achieve high S-parameters, the new product employs TDK's proprietary design structure and optimized
materials to reduce the impact of signal distortions caused by capacitance and effectively dampen common modenoise. Additionally, the original high-precision automatic winding technology ensures stable quality and highreliability.
TDK has an extensive lineup of common mode filters for automotive applications, including not only filters that arecompliant with the currently mainstream CAN, CAN FD, and FlexRay protocols but also compliant with Ethernet
protocols, such as 100BASE-T1 and 1000BASE-T1 for telecommunication speeds of 100 Mbps and 1 Gbps
respectively. Moving forward, TDK will continue meeting the demands of customers by providing comprehensive
product services for common-mode filters for automotive communication.
*Source: TDK, as of July 2024----Glossary••OPEN Alliance EMC test specification for common mode chokes: specification stipulating the recommended
characteristics of common mode filters for automotive Ethernet
Ethernet: a group of telecommunication protocols for wired local area networks

Main applications•Automotive Ethernet telecommunication systems (10BASE-T1S)© TDK Corporation · Press Information

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Main features and benefits•••

Class IV parasitic capacitance in the OPEN Alliance EMC test specification for common mode chokes achieve
industry firstHigh reliability achieved by laser bonding winding wires to metal terminals
Compliant with AEC-Q200 Rev. DKey data
TypeInductance [μH]at 100 kHz, 100 mV

DCresistance[Ω] max.

Insulation
resistance[MΩ] min.

Rated
current DC[mA] max.

Rated
voltage
DC[V] max.

ACT1210E-131-2P-TL00

130 + 50 % / -25%

2.9107080

About TDK Corporation
TDK Corporation is a world leader in electronic solutions for the smart society based in Tokyo, Japan. Built on afoundation of material sciences mastery, TDK welcomes societal transformation by resolutely remaining at theforefront of technological evolution and deliberately “Attracting Tomorrow.” It was established in 1935 tocommercialize ferrite, a key material in electronic and magnetic products. TDK’s comprehensive, innovationdriven portfolio features passive components such as ceramic, aluminum electrolytic and film capacitors, as wellas magnetics, high-frequency, and piezo and protection devices. The product spectrum also includes sensors andsensor systems such as temperature and pressure, magnetic, and MEMS sensors. In addition, TDK provides
power supplies and energy devices, magnetic heads and more. These products are marketed under the productbrands TDK, EPCOS, InvenSense, Micronas, Tronics and TDK-Lambda. TDK focuses on demanding markets inautomotive, industrial and consumer electronics, and information and communication technology. The company
has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and SouthAmerica. In fiscal 2024, TDK posted total sales of USD 14.6 billion and employed about 101,000 people
worldwide.
----You can download this text and associated images fromhttps://www.tdk.com/en/news_center/press/20240709_01.html
Further information on the products can be found underhttps://product.tdk.com/system/files/dam/doc/product/emc/emc/cmf_cmc/catalog/cmf_automotive_signal_act1210
e_en.pdf-----© TDK Corporation · Press Information

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Contacts for regional mediaRegion

ContactPhone

MailJapan

Mr. Daiki Ito

TDK Corporation
Tokyo, Japan+813 6778-1055

TDK.PR@tdk.com

ASEAN

Ms. Jiang MAN
Ms. Pei Lu LEE

TDK Singapore (Pte) Ltd.
Singapore+65 6273 5022

tdk.asean-inquiry@tdk.com

Greater
China

Ms. Clover XU

TDK China Co., Ltd.
Shanghai, China+86 21 61962307

TDK.PR-CN@tdk.com

EuropeMr. Frank
TRAMPNAU

TDK ManagementServices GmbH
Duesseldorf, Germany+49 211 9077 127

frank.trampnau@tdk.com

AmericaMs. Sara M.
LAMBETHTDK Corporation ofAmerica
Plano, TX, USA+1 972-409-4519

sara.lambeth@tdk.com© TDK Corporation · Press Information3