Key ratings for BOM fit
The TAJA475M025RNJ: Rated 4.7 µF at 25 V DC with ±20% tolerance — the capacitance tolerance is wide enough that a 4.7 µF nominal part could measure anywhere from 3.76 µF to 5.64 µF; confirm the minimum capacitance your circuit requires at the operating voltage and temperature. The 3.1 Ohm ESR at 25 V rating sets the ripple-current limit and self-heating under AC load — for a 100 kHz buck output filter, the ripple current should stay below ~250 mA RMS to keep the internal temperature rise within the datasheet derating curve.
1206 (3216 Metric) case, size code A, measuring 3.20 mm x 1.60 mm with a seated height of 1.80 mm max.