The TPSA156K006R1500: This is a molded tantalum capacitor from the KYOCERA AVX TPS series, 15 µF ±10% at 6.3 V, in a standard 1206 (3216 Metric) surface-mount package. The 1.5 Ohm ESR is typical for this size and voltage — it handles ripple current without excessive self-heating on a 6.3 V rail.
Active status — no last-time-buy panic
You can order it today against a BOM line without worrying about a sunset window.
Package and polarity — one chance to get it right
1206 case, 3.20 mm x 1.60 mm footprint, 1.80 mm seated height. The molded body has a polarity stripe on the positive end — line it up with the PCB silkscreen mark. No lab bench needed; a standard soldering iron and tweezers are enough for a field swap.