2.2 µF Molded Tantalum — 1206 Footprint, 10 V Rating
The TAJS225K010A is a Molded tantalum capacitor from the TAJ series by KYOCERA AVX, offering 2.2 µF capacitance with ±10% tolerance in a standard 1206 (3216 Metric) surface-mount package. Rated at 10 V, it carries a 12 Ohm ESR, making it suitable for decoupling and filtering roles where low-impedance bypass is not the primary requirement.
ESR and Temperature — Sizing for Ripple and Reliability
With a 12 Ohm ESR at 10 V, the capacitor's self-heating under ripple current is manageable for general-purpose decoupling on digital logic rails, but for high-ripple power-supply outputs, a lower-ESR tantalum or ceramic alternative should be considered. The 2.2 µF value paired with 10 V rating provides a solid decoupling cap for 3.3 V and 5 V supply lines in mixed-signal circuits.