22 µF, 16 V, 1.1 Ohm ESR — TAJ series molded tantalum
The 1.1 Ohm ESR at 100 kHz sets the ripple current ceiling — for a given ripple current, the I²R loss heats the part, and the 2000-hour lifetime at 125°C is the endurance limit if the capacitor runs at that temperature continuously.
The 125°C rating is the absolute maximum case temperature; derating the applied voltage is standard practice per the manufacturer's guidelines.
2917 (7343 Metric) — standard D-case footprint
The 2917 (7343 Metric) D-case measures 7.30 mm x 4.30 mm with a seated height of 3.10 mm. This is a widely used tantalum case size — the same footprint is shared across multiple manufacturers, so a second-source swap is a direct layout drop-in without a board spin.