Surface Mount Fuses suit space-constrained applications.

Featuring 3.15 x 1.5 mm and 6.10 x 2.69 mm footprints, with ratings of 125 Vac and 250 Vac, respectively, 470 and 476 Series NANO2

[source: http://news.thomasnet.com/fullstory/Surface-Mount-Fuses-suit-space-constrained-applications-20038024]