47 µF at 16 V — bulk decoupling for 12 V rails
900 mOhm ESR and the thermal budget
With 900 mOhm ESR, the ripple current capability is set by the I²R heating. For a 47 µF part on a 16 V rail, this ESR is typical for the D case size — it handles moderate ripple in DC-DC output filters without exceeding the 125°C limit.
D case 2917 — footprint and temperature range
Surface-mount D case (7.30 mm x 4.30 mm, 3.10 mm seated height) per EIA 2917 (7343 Metric).
