4.7 µF / 16 V molded tantalum — BOM-fit and thermal span
The TAJB475K016RNJ is a molded tantalum chip from the TAJ series, rated 4.7 µF at 16 V with ±10% tolerance. The 3.5 Ohm ESR sets the ripple current ceiling—for a 16 V rail decoupling a 100 kHz switcher, the self-heating stays within the 125°C limit as long as the RMS ripple current stays under the derating curve.
Product status is Active.
B-size case — footprint and mechanical fit
Manufacturer size code B translates to the 1411 (3528 Metric) / 1210 case: 3.50 mm x 2.80 mm footprint, 2.10 mm seated height. The two-land pattern is standard across the TAJ B-size range, so a layout already using a B-case tantalum accepts this part without pad changes.