NRND status and what it means for procurement
The ACM4520V-231-2P-T00: For sustainment programs already qualified on this filter, the NRND flag is a planning signal: budget for a last-time-buy window or identify a form-fit-function replacement before the supply tightens.
230-ohm common-mode impedance at 100 MHz
The core spec is 230 Ohms impedance at 100 MHz, typical for suppressing conducted common-mode noise on power lines in the 30–300 MHz range. This is a common target for automotive infotainment, CAN bus, or sensor supply rails where switching noise from a nearby DC-DC converter couples into the line.
AEC-Q200 and the 125 °C ceiling
Qualified to AEC-Q200, the passive-component stress-test standard for automotive electronics. This covers temperature cycling, moisture resistance, mechanical shock, and vibration — the filter is rated for under-hood or engine-bay deployment where the ambient reaches 125 °C. A 4.70 mm × 4.50 mm horizontal package with four pads (two input, two output) keeps the PCB footprint compact for space-constrained ECU layouts.