33 µF, 6.3 V, 2.2 Ohm ESR — the parametric fit
The TAJA336M006ANJ: This is a 33 µF molded tantalum capacitor rated at 6.3 V, with an ESR of 2.2 Ohm at 100 kHz. The 2.2 Ohm ESR is the key loss figure for a switching-regulator output filter or a decoupling bank — at 100 kHz the ripple current heats the part, and the ESR sets the self-heating. A lower ESR would run cooler, but this value is typical for the TAJ series in the A case code.
The 2000-hour lifetime at 125 °C means it survives extended high-temp soak in an avionics black box or downhole tool, but derate the voltage above 85 °C per the manufacturer's guidelines — a 6.3 V part at 125 °C should see no more than 2/3 of rated voltage to stay inside the safe operating area.
Active production — no last-time-buy worry
For a storeroom keeper, that means you can replenish without scrambling for a last-time-buy, and the reel date codes will be fresh.