Active production — confirmed by manufacturer
The TAJB475K035RNJ: This is a current-production part, not a discontinued or NRND line item.
4.7 µF at 35 V — the bulk decoupling sweet spot
4.7 µF capacitance at a 35 V voltage rating, ±10% tolerance — this is the typical value for 24 V rail bulk decoupling, DC-DC output filtering, or hold-up storage in industrial and automotive auxiliary circuits. The 3.1 Ohm ESR at 100 kHz sets the ripple current ceiling — for a 100 kHz switching regulator, the I²R loss in the capacitor is about 0.1 W at 180 mA ripple, well within the 0.125 W self-heating limit of a B case part.
B case 1411 — footprint and layout fit
Manufacturer size code B maps to the 1411 (3528 Metric) footprint: 3.50 mm x 2.80 mm body, 2.10 mm seated height. This is a common tantalum case size — the pad layout matches standard 3528 land patterns, so no footprint library update is needed if the BOM already uses a B-case tantalum. Surface-mount molded package, delivered on tape & reel (7-inch reel, 2000 pieces typical) or cut tape for prototype quantities. The molded construction gives better mechanical stability than conformal-coated parts under reflow and vibration.