220 µF at 16 V — bulk decoupling for automotive rails
The TPSE227K016T0150V: That ESR figure is the key thermal parameter — it determines the ripple current the part can handle before self-heating pushes the core temperature above the 125°C ceiling. For a 12 V automotive rail with 100 mV ripple, this cap sinks about 660 mA ripple current with a temperature rise well within the 2000-hour lifetime rating at 125°C.
AEC-Q200 — the under-hood temperature grade
AEC-Q200 qualification means this part passed the full automotive stress battery: temperature cycling, moisture resistance, mechanical shock, and vibration. The -55°C to 125°C operating range covers the engine-bay ambient envelope with margin — a 105°C under-hood soak leaves 20°C headroom before the rated 125°C limit. The 2000-hour endurance at 125°C is the accelerated life test; real-world duty at 105°C extends that significantly.
2917 case, size code E — standard pad layout
This is the common footprint for 220 µF tantalum caps in this voltage class — the pad layout matches the EIA standard 7343-31 pattern. The molded case construction gives consistent dimensional control for pick-and-place, and the surface-mount termination is compatible with reflow soldering profiles.