47 µF, 35 V, 200 mOhm — TPS molded tantalum
The TPSE476K035T0200V: Its ESR is specified at 200 mOhm at 100 kHz — the dominant loss term in a switching regulator output filter. At 500 kHz ripple, the ESR contributes 100 mV of ripple voltage per amp of ripple current, which sets the output capacitor budget for a buck converter.
AEC-Q200 automotive grade and 125°C endurance
Rated AEC-Q200, this capacitor is qualified for automotive electronics — the qualification covers temperature cycling, moisture resistance, and mechanical shock per the AEC-Q200 stress test sequence. The 2000-hour endurance at 125°C is the accelerated life test condition; actual service life at lower temperatures follows the Arrhenius model. For a 105°C hotspot in an engine-control module, the expected life roughly doubles for every 10°C drop from the rated temperature.
2917 (7343 Metric) case E footprint
The surface-mount footprint matches the standard EIA 7343-31 pad layout.