The TAJB685K006RNJ: No need to scramble for last-time-buy quantities or stockpile for a board spin.
At 6.3 V, a 3.3 V rail sits at 52 % of rating — safe margin against surge. Tolerance is ±10 %, which means the actual capacitance on any given part falls between 6.12 µF and 7.48 µF — tight enough for most filter and bulk decoupling roles without over-specifying.
Supplied in a molded 1210 (3528 Metric) case, size code B — 3.50 mm x 2.80 mm footprint, 2.10 mm seated height. The molded body is rework-friendly: the part lifts cleanly with hot air at 260–300°C without the thermal mass of a larger case, and the polarity band is clearly marked on the top face.