I was reading
and I notice a "pointy hexazoid" in the outline drawing. Duh, which end is positive?
I am laying out a board with USB, and I was going to put a 120uF capacitor across the power near the connector, and the part in stock at Mouser, A700D127M006ATE0157222, caught my attention.
Why would I avoid / seek this technology? Any guess how long these might last in a device in a home / office environment?