4.7 µF, 35 V, 2.2 Ohm ESR — bulk decoupling for 24 V rails
The TAJC475K035RNJ: This is a 4.7 µF tantalum capacitor rated at 35 V with a 2.2 Ohm ESR, in the TAJ series from KYOCERA AVX. The 35 V rating gives comfortable headroom on a 24 V supply — you can run it on a 12 V or 5 V rail with plenty of margin, but the real value is on a 24 V bus where the 2.2 Ohm ESR limits the ripple current and keeps the self-heating under control. The ±10% tolerance is tight enough for most bulk filtering and hold-up capacitor roles; for timing or precision filtering you would need a tighter tolerance or a different dielectric. The molded case (size code C, 6.00 mm x 3.20 mm x 2.80 mm) is a standard footprint that matches the 2312 (6032 Metric) land pattern — no surprises during layout.
The ESR is specified at room temperature; expect it to rise at the cold end and fall at the hot end, which affects the ripple current derating.