That 125 °C ceiling is the military-temp grade — think avionics black boxes, downhole instrumentation, or engine-bay electronics where ambient hits 105 °C and the cap sees the heat from the board. The 2000-hour endurance at max temp means it will survive the burn-in and the mission life, but derate for continuous operation above 85 °C per the manufacturer's guidelines.
Active lifecycle — no obsolescence scramble
That means you can commit this to a BOM for a new design or a repair without worrying about a sudden EOL notice.
1411 (3528 Metric) footprint — the B-size case
Packaged in the 1411 (3528 Metric) case, size code B — 3.50 mm x 2.80 mm footprint, 2.10 mm seated height. That's a common SMD tantalum footprint; if your board already has a B-size pad pattern, this drops in without a layout change. Supplied on tape and reel, so it feeds into a standard pick-and-place without a nozzle change.