4.7 µF, 35 V, 3.1 Ohm ESR — the bulk decoupling gate
The TAJB475M035HNJ: This is a KYOCERA AVX TAJ series molded tantalum capacitor, 4.7 µF ±20% tolerance, rated at 35 V with a 3.1 Ohm ESR. The 35 V rating gives headroom on a 24 V rail or a 12 V bus with margin for load-dump transients; the 3.1 Ohm ESR limits ripple current handling to roughly 0.4 A RMS before self-heating becomes a concern.
Military temperature range, surface-mount B case
The B case (1411 / 3528 Metric) sits at 3.50 mm x 2.80 mm with a seated height of 2.10 mm — a common footprint for 4.7 µF at 35 V in dense PCB layouts.