125°C endurance and ESR — the hot-side reliability pair
The TAJD227K010RNJV: Rated for 2000 hours at 125°C, this TAJ-series cap handles sustained high-temperature operation — think output filtering in a 12 V-to-3.3 V point-of-load converter sitting near a hot MOSFET or inside a sealed enclosure with limited airflow. The 500 mOhm ESR at 100 kHz keeps self-heating low enough that the internal temperature rise stays inside the 125°C ceiling.
Active production — no EOL clock ticking
D case 2917 — footprint and stack-up
Standard 2917 (7343 metric) case, size code D. The 7.30 mm × 4.30 mm footprint and 3.10 mm seated height fit the common tantalum land pattern — no board respin needed if replacing a D-case cap from another TAJ-series variant.