47 µF, 10 V, ±10% — the three numbers that define the BOM position
The TAJC476K010H: 47 µF capacitance at 10 V rated voltage with ±10% tolerance — these three values are the first check when matching this part to a circuit.
1.2 Ohm ESR — the ripple and dissipation driver
In a switching-regulator output filter, this ESR sets the output voltage ripple amplitude — lower ESR means lower ripple at the same capacitance. The ESR also contributes to I²R losses, so the temperature rise under full ripple current should be checked against the 125°C ceiling.
Molded case, size code C, surface-mount
The 6.00 mm x 3.20 mm footprint with a 2.80 mm seated height fits standard pick-and-place and reflow profiles. The molded body provides mechanical stability and moisture resistance, but standard tantalum derating guidelines apply — keep the applied voltage at 50% or less of rated voltage for best reliability in power-supply applications.
Capacitance and ESR shift with temperature; the datasheet's typical curves show capacitance dropping by about 10% at -55°C and ESR rising by roughly 2× at low temperature — budget this into the worst-case ripple analysis.