This TAJD686M006RNJ is a 68 µF molded tantalum capacitor rated at 6.3 V, in the standard 2917 (7343 Metric) case size. The ±20% tolerance is typical for tantalum electrolytics and works for bulk decoupling where the exact capacitance is not critical — think smoothing a 3.3 V or 1.8 V rail after a regulator. At 125°C the voltage derating curve applies — the 6.3 V rating is at 85°C; above that, the working voltage must be reduced per the datasheet derating guidelines.
Active production — no lifecycle concern
KYOCERA AVX lists this part as Active. It is a current production item suitable for new designs. The TAJ series is a long-running molded tantalum platform, so second-source equivalents from other manufacturers (same case code and ratings) exist but are not pin-compatible in the strict sense — tantalum capacitors are footprint-standardized by case size, not by manufacturer part number.
2917 case, tape-and-reel delivery
Supplied on Tape & Reel (TR), the 2917 (7343 Metric) case measures 7.30 mm x 4.30 mm with a seated height of 3.10 mm max. The molded package is polarity-sensitive — the anode band marks the positive terminal. Reflow soldering profile follows standard tantalum recommendations; preheat ramp rate should stay below 3°C/s to avoid thermal shock to the manganese dioxide cathode layer.