25 mOhm ESR — the low-loss bulk cap for power rails
A 25 mOhm ESR at 220 µF means the capacitor can absorb several amps of ripple current before the internal temperature rise becomes a derating concern, which is why you see these in output filters for point-of-load converters and input bulk storage on telecom line cards.
This matters for designs that see cold-soak at -55°C in avionics or downhole logging tools, and for hot spots near the engine bay or inside outdoor telecom enclosures where the ambient can hit 105°C. The 125°C ceiling means the capacitor's leakage current and ESR are characterised up to that junction temperature — you don't lose the derating margin at 105°C like you would with a commercial-grade part.
That means the manufacturer is still producing it, no end-of-life notice has been issued, and there is no last-time-buy window closing.
2917 (7343 Metric) — surface-mount footprint for automated assembly
The package is a 2917 (7343 Metric) case size, 7.30 mm x 4.30 mm footprint, with a seated height of 4.30 mm. This is a standard tantalum case code E size, which means the PCB land pattern is well-documented and the part is compatible with reflow soldering profiles used for lead-free assembly.