15 µF, 10 V, 1206 — TAJ molded tantalum
The TAJA156M010YNJ is a surface-mount molded tantalum capacitor from the KYOCERA AVX TAJ series, rated 15 µF at 10 V with ±20% tolerance in a 1206 (3216 Metric) case. Its 3.2 Ohm ESR at 100 kHz sets the ripple current ceiling — for a 10 V rail with 50 mA ripple, the self-heating stays under 10°C, but a 200 mA ripple pushes dissipation past 120 mW and the part runs hot.
Active production — no obsolescence watch
Footprint and board integration
The 1206 case measures 3.20 mm x 1.60 mm with a seated height of 1.80 mm max — a standard footprint that matches most 1206 ceramic capacitor pads, though the larger ESR means the tantalum part runs warmer and needs more copper pad area for heat sinking. Manufacturer size code A confirms the 1206 body; the molded construction gives consistent dimensions across the reel, important for pick-and-place yield.