100 µF bulk tantalum — 6.3 V rail, 100 mOhm ESR
The TPSY107M006H0100: The 100 mOhm ESR is moderate — low enough to handle ripple currents in a switching regulator output without excessive self-heating, but not as aggressive as a polymer or POSCAP. For a typical 3.3 V rail drawing 1 A ripple, the capacitor's own dissipation stays within the rated limits.
Temperature range and derating practice
MnO2 tantalum capacitors should be derated by 50% on voltage — for a 6.3 V part, the recommended working voltage is 3.15 V or lower. This derating margin improves reliability against surge failures. The ±20% tolerance is standard for MnO2 tantalum. Unlike MLCCs, tantalum capacitors have negligible DC bias capacitance loss — the 100 µF value holds close to nominal at the rated voltage.
Case size and footprint — 2917 (7343 Metric), size code Y
The size code Y indicates the case height variant. This footprint matches the common EIA-7343-31 pad layout used across the industry. Surface-mount assembly with standard reflow profiles. The molded case provides good moisture resistance — MSL rating is typically 3 for this series, so a 168-hour floor life after bake is standard before reflow.
Active lifecycle — no obsolescence risk
The TPS series is a broad, general-purpose tantalum line with wide distribution. No single-source risk — multiple distributors carry this order code.