100 µF bulk decoupling on a 6.3 V rail
This is the TAJD107M006SNJ, a molded tantalum capacitor from the TAJ series by KYOCERA AVX, rated at 100 µF and 6.3 V in the D-case 2917 footprint. It is a general-purpose part for surface-mount boards where you need a stable bulk capacitance on a low-voltage supply.
The molded case construction handles the thermal cycling without the mechanical stress that can crack conformally-coated wet electrolytics.
Listed as Active on the manufacturer's lifecycle.
