200 µH common-mode choke for 48 V automotive buses
The TDK ACT1210L-201-2P-TL00 is a 2-line common-mode filter in the ACT series, rated 200 µH at 100 kHz with a 70 mA continuous current ceiling and 80 VDC voltage rating. The 5.5 Ohm max DCR sets the DC insertion loss — at 70 mA the self-heating from I²R is about 27 mW, negligible in a standard PCB layout but worth factoring into a dense power-stage thermal budget.
AEC-Q200 qualification and 125°C operating ceiling
Rated AEC-Q200 and qualified across -40°C to 125°C, this choke is specced for under-hood and engine-bay environments where the ambient temperature exceeds the 85°C commercial limit. The 80 VDC rating provides margin on 48 V automotive bus systems (ISO 7637-2 load-dump pulses can exceed 48 V nominal).
Surface-mount footprint and tape-and-reel supply
The 4-pad layout routes each line through two pads — the pair on each side are internally connected, so the PCB fan-out is straightforward: one trace enters, one exits per channel. Supplied on tape and reel (Cut Tape also available), the reel quantity suits medium-volume pick-and-place runs.