What the ratings mean for the BOM
The TAJD157K010HNJ: The order code encodes the capacitance and voltage rating: '157' indicates 150 µF and '010' indicates 10 VDC working voltage. As a polarized tantalum capacitor, correct orientation on the PCB is critical — reverse voltage beyond 1 V can cause catastrophic failure. The anode (+) is marked on the body. RoHS compliance is standard for current KYOCERA AVX production; confirm the specific compliance certificate at quote time if your BOM requires it.
Sourcing and supply posture
The TAJ series includes multiple capacitance/voltage variants; a parametric search within the same case size (D case) can identify alternatives if needed.