The TAJD227M004RNJ: This is a 220 µF, 4 V rated tantalum capacitor from the KYOCERA AVX TAJ series, molded case, surface-mount in the standard 2917 (7343 Metric) D-size package. If your circuit pulls high-frequency ripple above a couple hundred mA RMS, you will want to check the ripple current derating against the ambient temperature.
Active lifecycle — no end-of-line pressure
That means no last-time-buy deadline, no PCN for discontinuation — you can design it into a new BOM today without worrying about a forced migration next year.
It will hold its capacitance and ESR through avionics cold-soak, downhole drilling heat, and satellite thermal cycling. The molded case and surface-mount package mean it survives the reflow profile without moisture sensitivity issues — no special bake-out required for standard floor life.
2917 D-size footprint — standard land pattern
The dimensions are 7.30 mm x 4.30 mm with a seated height of 2.90 mm max. That footprint matches dozens of other D-case tantalum capacitors — if your BOM already has a D-size land pattern, this part drops in without a layout change.