Common-mode choke for signal-line noise
The TDK ACM2520-601-2P-T002 is a 2-line common-mode filter from the ACM series, built to knock down conducted EMI on differential signal pairs or low-current power lines. Its 600 Ohms impedance at 100 MHz targets the switching noise from DC-DC converters and digital buses that couples onto cables or board traces. Rated for 300 mA continuous current with a maximum DC resistance of 450 mOhm, it handles typical I²C, SPI, or sensor lines without dropping too much voltage — but push it near the limit and the DCR heat adds up, so keep the trace copper and ambient airflow in mind.
Package and board-fit
It ships in Tape & Reel (TR) with Cut Tape (CT) options, so it is pick-and-place ready for volume builds or small rework lots.