6.8 µF at 20 V — bulk decoupling for a 1206 footprint
The TAJA685M020RNJ is a molded tantalum capacitor in the TAJ series, rated 6.8 µF at 20 V with ±20% tolerance. The 1206 case (3.20 mm x 1.60 mm) fits a standard pad layout, and the 2.4 Ohm ESR sets the ripple-current ceiling — at 100 kHz the self-heating from ESR times the RMS current determines the derating, not the voltage alone.
The molded case provides mechanical stability over this range without the cracking risk of conformally-coated parts.
