The 16 V rating provides 60% derating on a 10 V rail, which is standard practice to avoid tantalum failure from inrush or ripple. The 125 mOhm ESR is the dominant loss term — it sets the ripple current handling and self-heating, so the buyer must derate for the application load.
At 125°C the leakage current rises, but the capacitance stays within the ±20% tolerance band — no derating curve needed for the cap itself, though the surrounding PCB must handle the thermal cycle.
2917 (7343 Metric) — standard D-size land pattern
The 7.30 mm x 4.30 mm x 3.10 mm case matches the 2917 (7343 Metric) footprint, which is the common D-size tantalum land pattern. The molded package is polarity-marked with a band on the anode side. The ±20% tolerance means the actual capacitance can vary — a filter cutoff or timing circuit must be designed for the worst-case corner, not the nominal value.