The TPSC226K010T0300 is a molded tantalum capacitor from the KYOCERA AVX TPS series, rated 22 µF ±10% at 10 V. The 300 mOhm ESR at 100 kHz is the figure that matters for ripple handling in a switching regulator output — a lower ESR cap would cost more, but this one is adequate for most general-purpose bulk decoupling and output filtering on a 10 V rail.
Active and available today
Where it fits on the board
The 2312 (6032 Metric) case measures 6.00 mm x 3.20 mm with a seated height of 2.80 mm max. That is a standard footprint for tantalum caps in this capacitance range — no special pad geometry needed, but the ESR spec means it can handle a bit of ripple current without overheating.