4.7 µF at 20 V in a 1206 case — what it fits
The TAJA475M020SNJ is a molded tantalum capacitor from the TAJ series, rated 4.7 µF at 20 V with ±20% tolerance. The 1206 (3216 Metric) case size keeps the footprint small, but the 4 Ohm ESR means ripple current capability is limited — this part works best for decoupling and filtering in low-power rails, not for bulk energy storage in a switching regulator output.
No last-time-buy window or successor part has been announced.
Military temperature range — avionics and downhole use
The 20 V rating provides headroom for a 12 V rail with typical derating guidelines.