EMC components 
World’s smallest common-mode choke 
for CAN and FlexRay 	

•	Wide operating temperature range from -55 °C to +150 °C
•	Manufactured with fully-automated processes for high reliability and consistent quality

November 28, 2013

TDK Corporation presents the new ACT1210 series of common-mode chokes for both CAN and FlexRay bus systems. With their compact dimensions of just 3.2 mm x 2.5 mm x 2.4 mm, the chokes are the world’s smallest. Their footprint is approximately 45 percent smaller than that of existing components, while their volume has been more than cut in half. Rated for a wide operating temperature range from -55 °C to +150 °C, the new ACT1210 series offers high heat resistance and reliability, making it suitable for use under severe conditions such as those encountered in the engine compartment of a vehicle. Mass production of the components, which are qualified to AEC-Q200, will begin in December 2013.

The new series of common-mode chokes, which employs a further improved ferrite, is based on the joint technology competence of TDK and EPCOS in the area of EMC. Thanks to the unique structural design of the new series, the components are manufactured using a high-precision autowinding process, which contributes to their high stability and reliability and at the same time ensures their consistent quality.

The series joins the existing ACT45B series for CAN, the ACT45R series for FlexRay, and the new ACT45L series for automotive Ethernet, resulting in a highly versatile lineup of high-performance common-mode chokes for EMC in automotive bus systems.

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Main applications
•	Common-mode chokes for both CAN and FlexRay automotive bus systems 

Main features and benefits
•	With compact dimensions of 3.2 mm x 2.5 mm x 2.4 mm the world’s smallest common-mode choke for CAN and FlexRay 
•	Wide operating temperature range of -55 °C to +150 °C for high heat resistance and reliability under severe conditions such as those encountered in the engine compartment 
•	Manufactured with fully-automated processes for high reliability and consistent quality 
•	Qualified to AEC-Q200 

Key data 
Type	Common-mode impedance
[Ω] *min.	Common-mode inductance
[µH] **	DC resistance
[Ω] max.	Insulation resistance
[MΩ] min.	Rated current [mA DC] max. 	Rated voltage 
[V DC] max.	
ACT1210-110-2P	300	11	0.4	10	0.30	80	
ACT1210-220-2P	500	22	0.5	10	0.25	80	
ACT1210-510-2P	1000	51	0.7	10	0.20	80	
ACT1210-101-2P	2200	100	1.5	10	0.15	80	

*			at 10 MHz
**		at 100 MHz +50/-30 %

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About TDK Corporation
TDK Corporation is a leading electronics company based in Tokyo, Japan. It was established in 1935 to commercialize ferrite, a key material in electronic and magnetic products. TDK's portfolio includes electronic components, modules and systems* marketed under the product brands TDK and EPCOS, power supplies, magnetic application products as well as energy devices, flash memory application devices, and others. TDK focuses on demanding markets in the areas of information and communication technology and consumer, automotive and industrial electronics. The company has a network of design and manufacturing locations and sales offices in Asia, Europe, and in North and South America. In fiscal 2013, TDK posted total sales of USD 9.1 billion and employed about 80,000 people worldwide.

* The product portfolio includes ceramic, aluminum electrolytic and film capacitors, ferrites, inductors, high-frequency components such as surface acoustic wave (SAW) filter products and modules, piezo and protection components, and sensors.

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You can download this text and associated images from www.global.tdk.com/news_center/press/20131128725.htm. 

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Contacts for regional media
Region	Contact		Phone	Mail	
Japan	Ms. Mari KONISHI	TDK Corporation
Tokyo, Japan	+813 6852-7102	pr@jp.tdk.com	
ASEAN 	Ms. Jiang MAN
Mr. Shota KANZAKI	TDK Singapore (Pte) Ltd.
Singapore	+65 6273 5022	asean.inquiry@sg.tdk.com	
Greater China	Ms. Clover XU	TDK China Co., Ltd.
Shanghai, China	+86 21 61962307	pr@cn.tdk.com	
Europe 	Mr. Frank TRAMPNAU	TDK Electronics Europe GmbH
Duesseldorf, Germany	+49 211 9077 127	trampnau@eu.tdk.com	
America 	Ms. Sara M. LAMBETH	TDK Corporation of America
Irving, TX, USA	+1 972-409-4519	sara.lambeth@us.tdk.com