Why the 8 Ohm ESR matters for your BOM
The TAJC474K050RNJ: This 0.47 µF tantalum is rated for 50 V with ±10% tolerance, but the 8 Ohm ESR is the spec that drives derating — it limits the ripple current the part can handle before self-heating shifts the capacitance. At -55 to +125 °C, the ESR rises further at cold temperatures, so a bypass cap in a power rail that sees high-frequency ripple needs a parallel low-ESR ceramic to share the current.
Active production — no shortage-cycle panic
Listed as Active. No allocation signal — the cycle is stable for this TAJ series molded tantalum.
2312 (6032 Metric) case, 6.00 x 3.20 mm body, 2.80 mm seated max. Surface-mount, tape-and-reel or cut-tape. The manufacturer size code is C. This footprint is standard for 0.47 µF / 50 V tantalum chip capacitors — no layout surprises.