4.7 µF, 10 V, 5 ohm ESR — Molded tantalum for wide-temp designs
The TAJT475K010RNJ: This is a KYOCERA AVX TAJ-series molded tantalum capacitor rated at 4.7 µF with ±10% tolerance and a 10 V working voltage. The 5 ohm ESR sets the ripple-current ceiling and self-heating budget — at this ESR, the capacitor is best suited for decoupling and filtering where the AC ripple is modest, not for high-ripple bulk storage. The capacitance and ESR shift with temperature; at -55°C the capacitance typically drops 10-20% and ESR rises, so a design that relies on the full 4.7 µF at cold start should derate by at least 20%.
TAJT475K010RNJ carries an Active product status.
1411 (3528 Metric) case — low-profile footprint
The 1411 (3528 Metric) / 1210 case measures 3.50 mm x 2.80 mm with a seated height of 1.20 mm max. This low profile fits under tight board-to-board clearance or within mezzanine card stacks.