Common-mode suppression for signal lines
The TDK ACM2012-201-2P-TL002 is a two-line common-mode filter from the ACM series, delivering 200 Ω impedance at 100 MHz on signal pairs. It sits in the 0805 footprint (2.00 mm × 1.20 mm) with a 4-pad layout, designed to knock down common-mode noise on differential data lines without eating into the signal bandwidth.
Current handling and DCR trade-off
Rated for 350 mA continuous current with a maximum DC resistance of 250 mΩ. The DCR is the practical limit for power-sensitive paths — at full rated current the self-heating from I²R loss is about 31 mW, negligible in most signal-line applications but worth checking if the trace shares a tight thermal zone with temperature-sensitive passives.
NRND — what it means for procurement
The part remains orderable for existing BOM positions, but new designs should evaluate the current ACM series portfolio for a replacement.
Voltage and temperature envelope
The 50 V ceiling suits low-voltage signal rails (3.3 V, 5 V, 12 V, 24 V) with ample margin; the temperature range matches commercial and industrial non-automotive grades.