Low-ESR polymer in a radial can
The APSG250ELL331MJB5S: 330 µF at 25 V in United Chemi-Con's NPCAP™-PSG polymer series — the 14 mΩ ESR and 5 A ripple current at 100 kHz place this squarely in input and output smoothing roles on 12 V and 24 V bus rails where electrolytic ESR would be the loss bottleneck.
Lifetime and temperature grade
15,000 hours at 105 °C — polymer electrolytics derate more gracefully than conventional wet electrolytics, so a 105 °C-rated part running at 70–80 °C ambient typically exceeds the lifetime curve a wet part of equivalent voltage class would deliver at the same spot temperature. The -55 °C lower bound covers cold-start and outdoor enclosures without a cold-temperature ESR spike tripping the rail; the upper bound handles enclosed equipment bays where bulk caps sit away from the main heat sources but still see sustained elevated ambient.
Radial can footprint and board placement
5.00 mm lead spacing in a 10 mm diameter, 13 mm seated height radial can — this sits cleanly on 2.5 mm grid layouts without custom pad shaping; the seated height is the controlling dimension for vertical clearance in low-profile enclosures. Bulk packaging is typical for through-hole can capacitors sourced into production — reel/tape is not listed, so the incoming inspection step should confirm unit orientation if auto-placement is on the line, or budget hand-placement time on prototype builds.