This TAJD157M006RNJ is a molded tantalum capacitor from the TAJ series, offering 150 µF capacitance with ±20% tolerance at a rated voltage of 6.3 V. The 6.3 V rating provides a comfortable margin for 3.3 V and 5 V power rails, where bulk decoupling is needed to absorb transient current demands. Higher-ESR parts run warmer under ripple, so derate the ripple current if the ambient is near the 125°C ceiling.
D case 2917 — footprint and board fit
Packaged in the D case size (2917 / 7343 metric), measuring 7.30 mm x 4.30 mm with a seated height of 3.10 mm max. This is a standard tantalum case code — the footprint matches the industry-common D-size land pattern, so no layout surprises when swapping between manufacturers. Surface-mount assembly on tape and reel. The molded body is compatible with reflow soldering; typical peak reflow temperature for tantalum caps is 260°C, but check the specific moisture sensitivity level (MSL) on the reel label before baking.
This makes the part suitable for avionics power supplies, downhole instrumentation, satellite bus decoupling, and outdoor telecom equipment that sees -40°C nights and +85°C solar gain. The tantalum dielectric maintains stable capacitance across the range, though ESR increases at low temperature.