Bulk decap for a low-voltage rail
The TPME108K004H0018: This is a 1000 µF molded tantalum capacitor rated at 4 V with an 18 mOhm ESR — built for bulk energy storage on a sub-5 V rail where ripple current and transient response matter. The 18 mOhm ESR keeps self-heating manageable when the load steps hard; a higher-ESR cap would cook itself in the same spot. A commercial-grade cap would fail the first thermal cycle in those environments.
Case size and footprint fit
It ships in the 2917 (7343 Metric) case — 7.30 mm x 4.30 mm footprint, 4.30 mm seated height, manufacturer size code E.