What this molded tantalum capacitor delivers
The TPME158M002R0012 is a 1500 µF molded tantalum capacitor rated at 2.5 V, housed in the standard 2917 (7343 Metric) case. The 12 mOhm ESR keeps ripple heating low, making it a strong fit for bulk decoupling on a 1.8 V or 2.5 V rail where the downstream load draws fast current transients. The ±20% tolerance is typical for high-capacitance tantalum polymer parts; the actual capacitance at the rated voltage will sit near the upper end of the band, so budget the full 1500 µF for hold-up time calculations.
It can sit on a satellite power bus, inside an avionics LRU, or on a downhole instrument board that sees 125°C ambient — the molded case and solid tantalum construction handle the thermal cycling without the electrolyte dry-out of wet electrolytics.