Capacitance, voltage, and package fit
This TAJR335K016RNJ is a 3.3 µF tantalum capacitor rated at 16 V with ±10% tolerance, housed in an 0805 (2012 metric) molded case — the most common footprint for general-purpose decoupling and filtering on surface-mount boards. The 5 Ohm ESR is the limiting factor for ripple current — at 16 V and 3.3 µF, the self-heating from ripple stays within the package rating for most logic-level decoupling.
