Common mode filter for automotive Ethernet 10BASE-T1S
Achieves Class IV parasitic capacitance in the OPEN Alliance EMC test specification for common mode chokes
TDK Corporation announces that it has expanded its lineup of the ACT1210E Series (3.2 x 2.5 x 2.5 mm – L x W x T) of common mode filters for automotive Ethernet communication 10BASE-T1S.
The new ACT1210E-131-2P-TL00 filter lowers the line-to-line capacitance by approximately 30% compared to conventional 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 mode noise. Additionally, the original high-precision automatic winding technology ensures stable quality and high reliability.
Features
Class IV parasitic capacitance in the OPEN Alliance EMC test specification for common mode chokes achieve industry first
High reliability achieved by laser bonding winding wires to metal terminals
Compliant with AEC-Q200 Rev. D
Application
Automotive Ethernet telecommunication systems (10BASE-T1S)
Link to the Datasheet
https://product.tdk.com/de/search/emc/emc/cmf_cmc/info?part_no=ACT1210D-131-2P-TL00
Link to Rutronik 24
https://www.rutronik24.com/search-result/qs:ind22382/reset:0
