2.2 µF at 10 V — the ESR tells the story
The TAJA225K010H: At 2.2 µF and 10 V rated, this is a standard-value tantalum chip for decoupling and filtering. The 7 Ohm ESR is the spec that governs ripple current capability and transient response — at 100 kHz the impedance is dominated by the ESR, not the capacitive reactance, so a 100 mA ripple current dissipates 70 mW internally.
Molded 1206 case, TAJ series
Molded construction in the industry-standard 1206 footprint (3.20 mm x 1.60 mm,) with a seated height of 1.80 mm max. The TAJ series is a general-purpose molded tantalum line; the A case code is the smallest in the TAJ family.
Listed as Active under KYOCERA AVX.
