For a 3.3 V supply rail, the 20 V rating gives plenty of headroom against transients, and the 200 mOhm ESR keeps the ripple current handling around 1.5 A RMS at 100 kHz — enough for a modest DC-DC output filter or a bulk decoupling bank on a mixed-signal board.
Molded case, 2917 footprint — hand-solderable with care
The molded 2917 (7343 Metric) package measures 7.30 mm x 4.30 mm with a seated height of 3.10 mm. The part is surface-mount; the wide, flat terminations make it feasible to hand-solder with a fine-tip iron and a steady hand, though a hot-air station gives a cleaner joint. Polarity is marked with a band on the positive end — the same convention as most tantalum caps, so orientation is straightforward if you're replacing a failed part on a board.
KYOCERA AVX lists the TPSD226K020H0200 as Active.
If your board sees cold-soak at -55°C or sits near a hot engine bay at 125°C, this cap holds its rated capacitance and ESR within the ±10% tolerance band.