1.5 A fast blow in a 1206 footprint
The F1206B1R50FWTR is a 1.5 A fast-blow surface-mount fuse from the KYOCERA AVX Accu-Guard® II series, housed in a standard 1206 (3216 Metric) package. It is rated for 63 VDC and can interrupt fault currents up to 50 A at that voltage — a combination that suits DC power rails, battery management, and point-of-load protection in space-constrained designs.
With a breaking capacity of 50 A at 63 VDC, this fuse can safely clear a hard short on a DC power rail without rupturing. The melting I²t of 0.01 A²s tells you the energy needed to open — useful for sizing the fuse so it holds during capacitor inrush but clears fast on a dead short.