120 Ohm common mode choke for signal lines
The ACM2012-121-2P-T002: It targets signal line filtering — the 120 Ohms impedance at 100 MHz knocks down common mode noise on differential pairs without attenuating the differential signal itself. The 50 VDC voltage rating gives headroom for industrial control bus lines running at 24 V.
This means the part is still orderable for existing production but is not intended for new board spins — TDK will eventually issue an EOL notice. New designs should evaluate a pin-compatible common mode filter from the same ACM 0805 family with matching 2-line, 120 Ohm, 370 mA+ rating.
0805 footprint — board integration notes
Surface mount in a Horizontal, 4 PC Pad package — the four-pad layout routes each differential line through one winding, with the two coils sharing the common ferrite core. Operating temperature range is -40°C to +85°C, covering indoor telecom and industrial control environments.