Capacitance, voltage, and ESR — the three numbers that decide fit
The TPSB336M016R0500: 33 µF at 16 V rated — the 500 mOhm ESR is the number that matters for ripple current and thermal budget in a switching regulator output or DC-DC input filter. A 16 V rating on a 12 V rail gives 25 % derating, which is standard practice for tantalum to avoid surge failures on start-up.
This is a standard catalog part from KYOCERA AVX, so lead times are typically short through independent distribution.
Temperature range and package — field-fit check
The 1411 (3528 Metric) case, size code B, is a common footprint; 3.50 mm x 2.80 mm with 2.10 mm seated height.