Capacitance, voltage, and ESR for bulk decoupling
The TAJA225K020KNJ: This 2.2 µF molded tantalum capacitor is rated at 20 V with a ±10% tolerance — a common choice for decoupling a 12 V or 5 V rail where the DC bias does not exceed 80% of the rated voltage.
Temperature grade and lifetime in high-heat environments
The 125°C rating means it can sit next to a hot power device or in an engine-bay ECU without derating the ambient temperature, but the 2000-hour mark at 125°C is the wear-out floor: expect shorter life if the part runs continuously at that temperature.
Housed in a 1206 (3216 Metric) case, size code A, with dimensions 3.20 mm x 1.60 mm and a seated height of 1.80 mm max.
The part is in production and suitable for new designs.