The TPSW476M016R0200: The 200 mOhm ESR is the figure that governs ripple handling — lower ESR means less self-heating under AC ripple, so this part suits output filtering on a 12 V rail where the ripple current stays within the capacitor's dissipation limit. The ±20% tolerance is standard for tantalum electrolytics; the actual capacitance at the operating bias voltage will be lower than the nominal value, so budget derating into the design.
This is a current-production part, not a surplus or NRND item. The tape-and-reel packaging means it ships on standard 7-inch or 13-inch reels, compatible with automated pick-and-place.