Active production — no end-of-life signal
The TAJR155K010HNJ: That means it is still a production-line part, orderable through distribution without a last-time-buy clock ticking.
Tape & Reel — ready for the pick-and-place
Supplied on Tape & Reel (TR), which is the standard feed format for automated assembly. No hand-loading or cut-tape conversion needed — the reel goes straight into the feeder. If your line runs 8 mm or 12 mm tape, confirm the pitch against the reel spec; otherwise it is a drop-in.