The TAJS476K002RNJ: This is a 47 µF molded tantalum capacitor rated at 2.5 V with a 1.6 Ohm ESR. The 1.6 Ohm ESR is a key parameter: it limits ripple current handling and self-heating. For a 100 kHz ripple of 500 mA, the power dissipation is I² × ESR = 0.4 W — check the thermal derating in the datasheet for the 1206 case.
Active lifecycle — no immediate EOL concern
Reel quantities are standard; store the reels dry — tantalum capacitors are moisture-sensitive and benefit from dry-bag storage below 30°C/60% RH.
1206 case, 3.20 mm × 1.60 mm — board-fit checklist
The 1206 (3216 Metric) footprint is a common land pattern. The seated height is 1.20 mm max, which fits most board-stack constraints. The size code S corresponds to the standard 1206 outline. The ±10% tolerance is standard for general-purpose decoupling; no special derating is needed for most applications.
The wide temperature range also simplifies BOM consolidation: one part number covers both indoor and outdoor deployments.