Capacitance and voltage rating — 2.2 µF at 16 V
This TAJB225M016H from KYOCERA AVX is a 2.2 µF molded tantalum capacitor rated for 16 V DC, with ±20% tolerance.
The wide range also means it survives thermal cycling during reflow and field operation without cracking.
Package and footprint — 1411 (3528 Metric) / 1210
The 1411 (3528 Metric) / 1210 case measures 3.50 mm x 2.80 mm with a seated height of 2.10 mm. That's a common footprint — the B size code matches the TAJ series standard. The molded body reflows cleanly; the orientation mark is on the top, so you won't reverse it under the hot-air station.
ESR and performance — 5.5 ohm
The 5.5 ohm ESR is moderate for a 2.2 µF tantalum at 16 V. In a switching-regulator output filter, that ESR adds ripple voltage; for a simple decoupling cap on a digital IC, it's fine. If you need lower ripple, parallel a ceramic cap across it.
Listed as Active — no EOL notice, no last-time-buy window. KYOCERA AVX continues to manufacture the TAJ series.