Molded tantalum, 15 µF, 25 V — C case, 300 mOhm ESR
The 300 mOhm ESR is the headline selection parameter: in a 3.3 V rail filter, that ESR limits ripple current to roughly 1.2 A RMS at 100 kHz before self-heating becomes a concern — useful for output filtering on a moderate-current POL converter.
The molded case and surface-mount 2312 (6032 Metric) footprint suit automated assembly on standard FR4.
