Capacitance, voltage, and case size
The TAJA105K020ANJ: This is a 1 µF molded tantalum capacitor rated at 20 V, in a 1206 (3216 Metric) surface-mount package — the standard footprint for decoupling and bulk storage on a 12 V or 5 V rail where the derating rule-of-thumb (50% of rated voltage) leaves 10 V headroom.
ESR and temperature endurance
Store the reels in a dry environment; molded tantalum caps are not moisture-sensitive per JEDEC, but the terminations can oxidise in humid storage.
