The TPSD476K025R0150: For a BOM engineer, this removes the single-source obsolescence flag — the part can be specified into new designs with confidence that supply will continue through the product lifecycle.
47 µF at 25 V — bulk decoupling and energy storage
The 150 mΩ ESR at 100 kHz (typical for this D-case) determines the ripple current handling and self-heating — lower ESR means less temperature rise under AC ripple, which matters in high-frequency switching supplies.
D-case 2917 — board fit and rework reality
The molded package has a clear polarity stripe on the top face, which makes visual orientation check straightforward under a microscope or during hand rework — pin 1 is the positive end.
Temperature range and environment
The TPS series is a general-purpose molded tantalum line from KYOCERA AVX, not a low-ESR or high-reliability military grade, but the 125°C rating and surface-mount package suit most commercial and industrial designs.