220 µF, 600 mOhm ESR — the power-rail decoupling spec
This TPSB227M002Y0600 is a molded tantalum capacitor from KYOCERA AVX's TPS series, delivering 220 µF capacitance with a 600 mOhm ESR at 2.5 V rated voltage. The 600 mOhm ESR is the key figure for ripple current handling: at a given ripple current, lower ESR means less self-heating and longer life in a DC-DC output filter or bulk decoupling application.
That means it holds its capacitance and ESR characteristics across avionics cold-soak, engine-bay heat, or downhole tool environments — not just indoor commercial gear.
1411 (3528 Metric) case — footprint fit
Housed in a 1411 (3528 Metric) surface-mount case, size code B, measuring 3.50 mm x 2.80 mm with a seated height of 2.10 mm.