470 µF at 2.5 V — low-voltage bulk decoupling
The TPSY477M002R0100: That ESR figure sets the ripple current handling — lower ESR means less self-heating for a given ripple, so this part suits low-voltage rails where ripple current is moderate and the voltage margin is tight. The ±20% tolerance is standard for tantalum electrolytics; the actual capacitance at 2.5 V bias will sit near the nominal value, but derate the applied voltage to 50-60% of rated for reliability in power-supply decoupling.
The molded case construction provides mechanical stability and consistent thermal performance. It is surface-mount, so reflow profile compatibility should be verified against the manufacturer's recommended soldering conditions.
Active lifecycle — no EOL concern
The TPS series is a general-purpose tantalum line; the Y size code corresponds to the 2917 footprint.