470 µF bulk cap for 6.3 V rails
ESR and ripple current trade-off
With a 400 mOhm ESR, this part handles moderate ripple current without excessive self-heating. On a 100 kHz buck converter output, the ripple current rating is roughly 0.7 A RMS — enough for a 1-2 A rail with a ceramic input cap sharing the load.
The molded case keeps the dielectric sealed against humidity, which matters for conformal-coated boards in outdoor telecom cabinets.
Active — no end-of-life concern
The part is in volume production and can be quoted to order for both prototype reels and production quantities.