Active production part — no last-time-buy risk
TAJE686K020RNJV carries an Active product status.
If your pick-and-place line feeds from 8 mm or 12 mm reels, confirm the carrier tape pitch and hub diameter against the reel drawing — the TR suffix on the order code is your flag that it's not bulk or cut tape.
Series * — check the full datasheet for parametric details
The part belongs to the * series from KYOCERA AVX. The series designation typically groups parts by dielectric, voltage rating, and case size, so cross-referencing the series datasheet will give you the capacitance tolerance, ESR, and operating temperature range that the order code alone doesn't spell out.