TAJA154M050RNJ — 0.15 µF, 50 V molded tantalum in 1206 case
The TAJA154M050RNJ is a molded tantalum capacitor from the KYOCERA AVX TAJ series, rated at 0.15 µF capacitance with a 50 V DC voltage rating and ±20% tolerance. Housed in a 1206 (3216 Metric) surface-mount package, it measures 3.20 mm x 1.60 mm with a seated height of 1.80 mm — a compact footprint for general-purpose decoupling, filtering, or timing circuits on densely populated PCBs.
ESR is specified at 15 Ohm at 100 kHz — this is the impedance floor for high-frequency ripple. A 15 Ohm ESR is moderate; the part serves bulk storage and low-frequency decoupling better than high-speed bypass where sub-Ohm ESR is typical. Endurance is rated 2000 hours at 125°C — the minimum lifetime under continuous high-temperature stress. For a 24/7 industrial controller running at 85°C ambient, the actual service life extends well beyond this rating due to the Arrhenius acceleration factor.