The TAJD157K006SNJ is a molded tantalum capacitor from the TAJ series, rated at 150 µF with a 6.3 V working voltage — a common choice for bulk decoupling on low-voltage supply rails where the derating margin keeps the applied voltage below the rated voltage. The 900 mOhm ESR sets the ripple current capability and the self-heating under AC load; for a 150 µF part at 6.3 V, this ESR is typical for the D case size and keeps the capacitor within its thermal limits in most power supply output filters.
Military temperature range and D case footprint
The 2917 (7343 Metric) case measures 7.30 mm x 4.30 mm with a seated height of 3.10 mm max. The D size code is a standard tantalum chip footprint; the PCB land pattern follows the manufacturer's recommended pad geometry for reflow soldering.