The TPSB686M006R0350: Rated 68 µF at 6.3 V with a 350 mOhm ESR, this TPS-series tantalum is sized for bulk decoupling on a 3.3 V or 1.8 V rail where the ripple current is modest and the voltage margin is comfortable. The 350 mOhm ESR sets the self-heating floor — at the rated ripple current the internal temperature rise stays within the package limits, but a higher-ripple application like a switching regulator output may call for a lower-ESR grade.
The part can be ordered against a BOM line without stockpiling urgency.
Military temperature range in a small 1411 case
The 1411 (3528 Metric) case — 3.50 mm x 2.80 mm footprint, 2.10 mm seated height — fits tight PCB layouts in avionics, satellite, or downhole instrumentation where the ambient extremes exceed the -40 to +85 °C industrial range.
Molded case, tape-and-reel delivery
Molded construction with a ±20 % tolerance on capacitance. The case code B (1411) is a common footprint shared across the TPS family, so a single PCB land pattern serves multiple capacitance values in the same voltage rating.