The TAJD227M006RNJV is a molded tantalum capacitor from the TAJ series, offering 220 µF capacitance at a 6.3 V rated voltage. This combination suits it for bulk decoupling on 3.3 V or 5 V supply rails, where the 220 µF provides enough charge reservoir to handle transient load steps without excessive voltage droop. The 400 mOhm ESR at 100 kHz limits self-heating under ripple current — a key parameter when the capacitor sits on a switching regulator output. Higher ESR means more internal heat for a given ripple current, so the 400 mOhm figure sets the ripple current capability at about 1.2 A RMS for a 25°C ambient, derating at elevated temperatures.
Operating range and lifetime at 125°C
The 2000-hour lifetime at 125°C means the capacitor is derated for continuous use at that temperature; running it at 85°C extends life well beyond 2000 hours per the Arrhenius model.