Capacitance, voltage, and ESR — the three numbers that size the BOM line
The TAJB475K035Y is a molded tantalum capacitor from the KYOCERA AVX TAJ series, rated at 4.7 µF with ±10% tolerance and a 35 V working voltage.
Package and footprint — what the Case B size means on the board
Case B (EIA 1411 / 3528 Metric) measures 3.50 mm x 2.80 mm with a seated height of 2.10 mm max — this is a common tantalum footprint that fits a standard 1210 pad layout; the surface-mount assembly is straightforward with no underfill or special reflow profile beyond the standard JEDEC tantalum preconditioning.