22 µF, 16 V, 300 mOhm — the bulk cap for tight rails
The 16 V rating gives headroom for a 12 V input rail or a 5 V output rail with derating margin — tantalum caps typically need 50 % voltage derating for reliable operation, so 16 V covers an 8 V steady-state rail comfortably. The 300 mOhm ESR keeps ripple current self-heating manageable in a DC-DC converter output filter; a lower ESR would reduce ripple further but increase inrush current at power-up. The 2312 (6032 Metric) case size (6.00 mm x 3.20 mm footprint) fits standard bulk-capacitor pads on a 4-layer board.
The TPS series is a broad molded-tantalum family; the active status applies to this specific ordering code. For BOM planning, the part is sourced to order against the RFQ quantity — no stock-holding claim, but the active lifecycle means lead times are generally stable.
It is a fit for avionics power supplies, downhole instrumentation, satellite bus filtering, or any board that sees thermal cycling from cold-soak to hot-day engine-bay ambient. The molded case and surface-mount 2312 package suit automated assembly in high-reliability builds. No AEC-Q100 qualification is listed, so for automotive under-hood use, confirm the specific qualification requirement against the datasheet.