10 µF, 6.3 V, 4 Ohm ESR — selection fit for decoupling and filtering
The TAJA106K006SNJ: This is a molded tantalum capacitor from the KYOCERA AVX TAJ series, offering 10 µF capacitance with ±10% tolerance at a 6.3 V DC rating. The 4 Ohm ESR at 100 kHz sets the ripple current handling and self-heating floor — for a 100 kHz switching regulator output, the voltage ripple from ESR alone is 40 mV per 10 mA of ripple current, a figure to budget against the load's supply rejection.
-55 to 125°C — temperature grade for industrial and automotive ambient
The molded construction provides mechanical stability across thermal cycling, and the 1206 (3216 Metric) case — 3.20 mm x 1.60 mm footprint with 1.80 mm seated height — fits standard reflow profiles without special pad geometry.