1 µF, 50 V — molded tantalum for tight spots
The 1206 (3216 Metric) case is large enough for hand rework — you can get a soldering iron tip on both ends without a hot-air station, and the orientation mark is clear under magnification. The 6.6 Ohm ESR is on the high side for a tantalum of this capacitance — expect self-heating if the ripple current exceeds a few hundred mA. For a decoupling cap on a 50 V rail with low ripple, the ESR is fine; for a switching regulator output filter, you'll want a lower-ESR polymer or ceramic alternative.
This cap will sit in an avionics black box, a downhole tool, or an engine-bay ECU without derating for ambient extremes. The molded case handles thermal cycling better than dipped tantalums; no conformal coat required for the cap itself.