Capacitance, voltage, and package fit
This TAJX106K035RNJ is a 10 µF, 35 V rated tantalum capacitor in the molded 2917 (7343 Metric) case — the 7.30 mm × 4.30 mm footprint and 1.50 mm seated height fit standard power-supply decoupling and bulk-storage positions on a PCB. The ±10% tolerance keeps the capacitance within a tight window for filter or timing circuits where the nominal value matters more than a ±20% grade would allow.
700 mOhm equivalent series resistance is a mid-range value for this case size — it limits ripple current self-heating and keeps output ripple manageable in a buck-converter output stage or as a local decoupling cap near a switching regulator.