Capacitance, voltage, and package — the BOM-fit check
The TAJD156M020ANJ: Rated 15 µF at 20 V with ±20% tolerance — these are the two numbers that must match the BOM line before any other consideration.
ESR is specified at 1.1 Ohm at 100 kHz — this sets the ripple voltage and self-heating floor. For a 15 µF cap on a 20 V rail, the ripple current capability is limited by this ESR.
