What the part number tells you
The TAJB225K035SNJ: The '225' in the order code indicates a capacitance of 2.2 µF, and '035' points to a 35 V voltage rating — the standard JIS coding for tantalum chip capacitors.
RoHS compliance and datasheet access
RoHS compliance is a common query for this part; the manufacturer's datasheet confirms the environmental status. The datasheet for TAJB225K035SNJ is available from KYOCERA AVX and covers the full electrical specifications, including capacitance tolerance, ESR, and leakage current.