The TPSE227K016R0100V: This is a current-production part, not a shortage-cycle or surplus play. The part is quoted to order — no stock-holding claim, no franchise wall.
220 µF, 16 V, 100 mOhm ESR — the derating axis
The 100 mOhm ESR at 100 kHz is the figure that governs ripple-current capability and self-heating — a lower ESR means less internal temperature rise for the same ripple, which matters in a 125°C ambient environment. The 2000-hour endurance at 125°C sets the thermal budget: derate the applied voltage and ripple current per the manufacturer's guidelines to stay inside the lifetime curve.
2917 molded case, size code E
Surface-mount in the 2917 (7343 metric) package, size code E. Molded case construction typical of the TPS series, rated for -55°C to 125°C operating range. Tape & Reel packaging for automated pick-and-place.