The TAJB336M006RNJ: Rated 33 µF at 6.3 V with ±20% tolerance, this is the capacitance-voltage pair that determines whether the part lands on the BOM line or gets swapped for a different value. The 6.3 V rating leaves headroom for a 3.3 V or 5 V rail, but a 12 V bus would exceed the voltage ceiling — confirm the rail voltage before committing.
For a sustainment program that needs to replace a commercial-grade part with a wider-range equivalent, this one covers the same thermal envelope as MIL-spec tantalums.
B case, 1411 footprint
Manufacturer size code B, fitting the 1411 (3528 metric) package: 3.50 mm x 2.80 mm footprint, seated height 2.10 mm max. The molded case is a standard tantalum outline — the pad layout matches the EIA 3528-21 land pattern, so a PCB already routed for a B-case tantalum accepts this part without a layout change.