Sizing the 0.15 µF cap for your rail
TAJB154M050RNJ is a 0.15 µF molded tantalum capacitor from the TAJ series, rated at 50 V with ±20% tolerance.
Temperature grade and board environment
The molded case handles humidity better than uncoated tantalum — no conformal coat needed for most indoor-industrial builds.
ESR and ripple current budget
17 Ohm ESR at 100 kHz limits the ripple current this cap can handle without self-heating. For a 0.15 µF value, that's typical for a general-purpose decoupling cap on a slow signal line or a low-frequency filter; don't use it on a switching regulator output where ripple current exceeds a few mA.
The TAJ series is a standard molded tantalum line with broad distribution, so cross-referencing to other manufacturers is straightforward if needed.