470 µF bulk decoupling at 6.3 V — 150 mOhm ESR limits ripple heating
The TPSY477K006R0150: The 150 mOhm ESR (Equivalent Series Resistance) is the key thermal parameter — at ripple currents typical of a 6.3 V rail, this ESR keeps self-heating within the molded package's dissipation limits, avoiding the derating penalty that higher-ESR parts incur above 85°C. At 125°C, the voltage derating curve (per the TPS series application note) typically recommends staying below 50% of rated voltage for reliable operation — a 6.3 V rail at 3.3 V or lower is well within margin.
This is the standard low-profile tantalum footprint used across the TPS series — the pad layout matches the common 7343-20 land pattern, so a single PCB footprint serves multiple capacitance/voltage variants within the same case code. Surface-mount assembly with Tape & Reel packaging (Cut Tape available) — the reel quantity is set by the manufacturer's standard pack size for this case. The molded body is compatible with reflow profiles up to 260°C peak per J-STD-020, though the tantalum anode's moisture sensitivity level (MSL) should be confirmed from the lot-specific bake-out requirements.
Active production — no end-of-life notice on record
For BOM planning, the TPS series is a mature platform with broad capacitance/voltage coverage in the 2917 case. If a second-source hedge is needed, the same case code and ESR class are available from multiple tantalum manufacturers — though pin-compatible drop-in requires matching the ESR and voltage derating profile, not just the capacitance and voltage rating.