Molded tantalum for wide-temp power rails
The TAJB156K016H is a molded tantalum capacitor from the TAJ series, rated 15 µF at 16 V with ±10% tolerance and a 2.5 Ohm ESR.
B case footprint and ESR trade-off
Housed in the B case (1411 / 3528 Metric, 3.50 mm x 2.80 mm footprint, 2.10 mm seated height), this part fits tight PCB layouts common in portable or space-constrained modules. The 2.5 Ohm ESR is typical for a B-size tantalum at this voltage rating — it limits the ripple current the capacitor can handle before self-heating becomes a concern, so derate for high-AC applications.