The TPSD476K016S0080: In a DC-DC output filter or a power-supply decoupling role, the ESR sets the ripple-current limit — at 80 mOhm the capacitor can handle roughly 1.4 A RMS of ripple at 100 kHz before self-heating reaches the 125°C ceiling, assuming the board keeps the ambient below 85°C. The 16 V rating provides 20% derating on a 12 V rail, which is the standard practice for MnO2 tantalums to avoid field-failure surge current.
D-case 2917 footprint and temperature range
The size code D is the standard 7343 footprint — the same land pattern as the TPS series D-case polymer parts, so a single PCB pad serves both MnO2 and polymer variants if you need to swap later.