470 µF bulk cap for low-voltage rails
The TAJY477M004RNJ is a molded tantalum capacitor from the TAJ series, offering 470 µF at 4 V rated voltage in a 2917 (7343 Metric) surface-mount package. The 900 mOhm ESR sets the ripple current ceiling and the output ripple amplitude — for a 100 kHz, 1 A ripple current, the self-heating is roughly 0.9 W, which must stay within the part's thermal budget at the ambient temperature.
Active production, full temp range
Molded case, standard footprint
The molded 2917 case (7.30 x 4.30 x 2.00 mm seated height) is a standard tantalum footprint — no special pad geometry required.