Capacitance, ESR, and the bulk-decoupling decision
The TPSE687K002R0035: 680 µF at 2.5 V rated with a 35 mOhm ESR — the low ESR keeps ripple voltage in check on a 2.5 V rail, but the real-world voltage derating for a tantalum capacitor means you should stay below 60% of rated voltage for reliable operation in a low-impedance circuit. The E case (2917 / 7343 Metric) footprint is a standard size for bulk tantalum capacitors in power-supply filtering and decoupling roles on surface-mount boards.
Temperature envelope and deployment fit
The molded case and general-purpose classification mean it is a standard off-the-shelf tantalum, not a specialty low-ESR or high-reliability MIL-grade part — confirm the application's surge-current tolerance before committing the BOM line.