330 µF at 4 V — what the ESR tells you about ripple handling
The TPSD337K004A0045: The 45 mΩ ESR is the number that governs ripple current capability — lower ESR means less self-heating for a given ripple, which matters when the cap sits near a regulator or processor core that draws pulsed current.
D case footprint and operating range
The surface-mount footprint matches the standard D-case land pattern — no layout surprises if you are replacing a D-size tantalum from another vendor.