Molded tantalum for extreme-temperature decoupling
The TPSB225K035S2000 is a molded tantalum capacitor from KYOCERA AVX's TPS series, rated 2.2 µF at 35 V with ±10% tolerance.
ESR and ripple current budget
With 2 Ohm ESR, the molded package sinks heat into the PCB copper pad. For a 35 V rail, the ESR limits ripple voltage.
B case footprint and board layout
The B case size (3.50 mm x 2.80 mm, seated height 2.10 mm) fits the common 1411 / 3528 Metric footprint. The low profile leaves clearance under adjacent components on a densely populated board.
That means no last-time-buy scramble for the next several years — the BOM line stays stable across production runs.