6.8 µF bulk decoupling at 50 V — D-case footprint
TAJD685K050SNJ is a 6.8 µF ±10% molded tantalum capacitor rated at 50 V, in the standard D-case (2917 / 7343 Metric) package. The 1 Ohm ESR is typical for a D-case part at this voltage and capacitance — it sets the ripple current handling and self-heating under AC load. The molded case provides mechanical stability over the full temperature sweep.
KYOCERA AVX lists the TAJD685K050SNJ as Active. The D-case footprint (7.30 mm x 4.30 mm) is a widely used tantalum land pattern — no board layout change is needed if cross-shopping other D-case 50 V tantalums from the same or alternate manufacturers.