Bulk decoupling for power rails up to 8 V
The TPSE477K010H0045 is a 470 µF molded tantalum capacitor in the TPS series from KYOCERA AVX, rated at 10 V with a ±10% tolerance.
The 45 mOhm ESR (equivalent series resistance) is the figure that governs ripple current handling and output voltage ripple in a DC-DC converter. A lower ESR means less self-heating and tighter regulation under pulsed loads, which matters when this cap sits on the output of a switching regulator feeding an FPGA core or a sensor array. The molded case (E case, 2917 footprint) handles the mechanical stress of thermal cycling across that range.