The TAJA476M002RNJ: Rated 47 µF at 2.5 V, this molded tantalum from the TAJ series provides bulk capacitance for a 1.8 V or 2.5 V supply rail where the voltage margin stays below 0.5 V above the rating. The 1206 case (3.20 mm x 1.60 mm footprint) fits standard reflow assembly; the 1.80 mm seated height clears low-profile enclosures.
3 Ohm ESR – ripple current and thermal budget
With a 3 Ohm ESR, the self-heating from ripple current is significant — at 100 mA RMS the internal temperature rise is roughly 30 mW × Rth, so this part suits low-ripple DC bus or hold-up capacitance rather than high-frequency switching regulator outputs.