220 µF in a 1411 molded case — what it fits
The TAJB227M002RNJ: This is a molded tantalum capacitor from the TAJ series, rated 220 µF at 2.5 V with a ±20% tolerance and 1.6 Ohm ESR. The B case (1411 / 3528 Metric) stands 2.10 mm seated height, so it fits a low-profile board stack where a larger D or E case would crowd the adjacent components or the enclosure lid. The 1.6 Ohm ESR is the parameter that sets ripple-current capability and self-heating on a power rail — for a 2.5 V bus pulling a few hundred mA ripple, this part keeps the internal temperature rise within the derating envelope without needing a larger case.
Temperature range and production status
The lifecycle status is Active, meaning KYOCERA AVX still manufactures it and there is no last-time-buy or obsolescence notice to track.
Surface-mount footprint and reflow considerations
The 1411 (3528 Metric) package is a standard molded tantalum footprint — the pad layout matches the EIA 3528-21 land pattern. Reflow profile follows the standard tantalum cap soldering curve, with a peak temperature not exceeding 260°C for 10 seconds. No special bake-out is required before mounting, as the molded construction is not moisture-sensitive like some chip tantalums.