22 µF, 10 V, 400 mOhm — the ripple-current ceiling
The 400 mOhm ESR is the key derating parameter: it sets the maximum ripple current the part can handle before self-heating forces a voltage or temperature derating.
The molded case provides mechanical protection and moisture resistance, but the temperature rating is the real authority signal: a ceramic capacitor of the same value would lose capacitance below -55 °C and require voltage derating above 85 °C; this tantalum holds its 22 µF across the full range.
Active production — no LTB deadline
The manufacturer size code is B, which maps to a 3.50 mm x 2.80 mm footprint with a seated height of 2.10 mm max. This is the standard B case for the TPS series — the same footprint as the 500 mOhm variant (TPSB226M010R0500), so a BOM swap between the two ESR grades requires no board layout change. The 1411 (3528 Metric) package code is the JEDEC reference; the pad layout follows the manufacturer's recommended land pattern for the B case, typically 3.80 mm x 3.00 mm with a 1.00 mm keep-out zone under the part.