Molded tantalum in a 1206 footprint
The molded construction provides a rigid, flat-top body that handles reflow soldering without cracking — a common failure point in conformal-coated tantalums when the board bends or the part sees thermal shock.
Surface-mount assembly and layout fit
The 1206 case measures 3.20 mm x 1.60 mm with a seated height of 1.80 mm max — a common footprint that matches standard land patterns for automated pick-and-place. The manufacturer size code A indicates the smallest case in the TAJ series, which keeps the PCB real estate tight but limits the available capacitance and voltage combination. The molded body is polarity-sensitive — the anode (+) is marked by a band on the top face; reverse-voltage installation will short the part and can damage the board.