The TAJD477M006TNJV is a molded tantalum capacitor from the KYOCERA AVX TAJ series, rated 470 µF ±20% at 6.3 VDC. For a 3.3 V rail, that gives 2.7 V of headroom; for a 1.8 V rail, the margin is nearly 4.5 V. The D case (2917 metric, 7.30 mm × 4.30 mm footprint) is the standard bulk-decoupling size for power-entry stages on automotive ECUs and industrial power supplies.
AEC-Q200 — the automotive qualification that skips the re-qual cycle
This capacitor carries AEC-Q200 qualification, the passive-component stress-test standard for automotive electronics. An ECU or BMS design that already uses a TAJ-series cap at 470 µF / 6.3 V can drop this order code into the BOM without a separate PPAP re-run — the qualification covers the temperature cycling, moisture resistance, and mechanical shock per the AEC-Q200 test plan.
400 mOhm ESR — the thermal budget at 125 °C
ESR is specified at 400 mOhm typical at 100 kHz.