Power-line common-mode filtering for automotive modules
The TDK ACM4520V-142-2P-T00 is a 2-line common-mode choke from the ACM-V series, packaged in a horizontal surface-mount 4-pad package (4.70 mm x 4.50 mm, 2.00 mm height). It is designed for power line filtering and carries an AEC-Q200 qualification, making it suitable for automotive electronic modules that must pass conducted EMI limits on the battery or ignition lines. Rated at 1 A continuous current with a maximum DC resistance of 80 mOhm, this choke presents 1.4 kOhms of common-mode impedance at 100 MHz. An engine control unit or transmission controller sitting near the engine block at 105°C ambient still has margin before the ferrite core saturates thermally.
NRND — plan last-time-buy or qualify a replacement
This means the part remains available for existing production BOMs but is not intended for new design-ins. For procurement teams managing an active BOM, this NRND status signals a need to evaluate last-time-buy quantities or identify a pin-compatible alternative from the same ACM-V series family.