What the 80 mOhm ESR means for your rail
The TPSE476K025R0080: That ESR figure is the key selection parameter: it governs ripple current handling and self-heating. A lower ESR means the cap can absorb more AC ripple without exceeding its internal temperature rise limit, which matters when this part sits on a switching regulator output or a DC-DC converter input.
Temperature range and operating environment
At the high end, the leakage current and derating curve shift — the 25 V rating should be applied with a 50% voltage derating at 125°C to stay within the safe operating area, a standard practice for MnO₂ tantalum capacitors.
Package and board fit
The molded construction gives a flat top for pick-and-place nozzle vacuum pickup and the standard surface-mount footprint matches the common 2917 land pattern. Supplied in tape-and-reel for automated assembly.