0.1 µF at 35 V — what it fits
The TAJA104K035HNJ is a molded tantalum capacitor from the TAJ series, rated 0.1 µF at 35 V with ±10% tolerance. This is the decoupling sweet spot for a 24 V or 12 V rail — the 35 V rating gives headroom above a 24 V supply without oversizing the case.
Temperature range and endurance — the scorch-mark test
The 2000-hour endurance at 125°C means it will survive a hot spot on the board for the expected service life of most industrial or avionics gear — but if the board runs at 125°C continuously, the cap will dry out before the rest of the circuit. It will handle ripple current from a linear regulator, but don't use it as a bulk filter on a switching converter — the self-heating will shorten that 2000-hour life.
KYOCERA AVX lists the TAJA104K035HNJ as Active. This is a standard production part you can quote against a BOM line without worrying about obsolescence.