Nichicon Part #UHN0J152MPD This is a recent off-catalog discovery at Mouser. The same size as the Panasonic FM 1000uf 6.3V, it has even better ESR and ripple ratings: 0.018 ohms and 1760 mArms, respectively. Dimensions: 10mm x 12.5mm high Untested in the BantamDAC at the moment, we are suggesting it as an alternative and possible upgrade to the Panasonic FM. Please let us know what you think if you try one!