What this TAJ tantalum capacitor brings to the board
The TAJD475K035SNJ is a molded tantalum capacitor from the TAJ series, delivering 4.7 µF capacitance at 35 V rated voltage with ±10% tolerance. Its 1.5 Ohm ESR at 100 kHz sets the ripple current ceiling — in a buck converter output filter, that ESR contributes directly to the output ripple voltage and self-heating, so the derating curve in the datasheet matters for reliability above 85°C.
