6.8 µF, 16 V, 3.5 Ohm ESR — molded tantalum for decoupling and filtering
The TAJT685K016RNJ: This is a KYOCERA AVX TAJ series molded tantalum capacitor with 6.8 µF capacitance, ±10% tolerance, and a 16 V DC rating. The 1411 (3528 Metric) case, size code T, measures 3.50 mm x 2.80 mm with a seated height of 1.20 mm max. This footprint is common across many 16 V tantalum offerings, so a BOM swap to a different brand or series at the same size code is mechanically straightforward — no board layout change needed.
The product status is Active. That means the manufacturer continues to produce and support the TAJ series in this rating — no last-time-buy clock is running.
The capacitance change over temperature is typical for tantalum — the ESR rises at cold extremes, so the ripple current derating at -55°C should be checked against the application's worst-case load.