What the ratings mean for your protection design
The 1206SFP100F/63-2 is a 1 A, 63 V DC rated board-mount fuse in the Littelfuse SFP series, housed in a standard 1206 (3216 Metric) surface-mount package. Its 50 A breaking capacity at the rated voltage means it can safely interrupt a fault current up to 50 A without arcing or rupturing the ceramic body — critical for protecting downstream circuitry in a DC bus or power rail where the prospective short-circuit current is known to stay below that threshold. The 0.11 melting I²t figure governs how the fuse responds to inrush and surge events. A lower I²t means faster opening under high overcurrent — this part clears quickly on a hard short, but a capacitive input load drawing a brief inrush above 1 A may cause nuisance opening if the energy integral exceeds 0.11 A²s.
Obsolete — sourcing through independent channels
For a BOM line that requires this exact fuse — same 1206 footprint, same 1 A / 63 V DC rating, same SFP series characteristics — the only sourcing path is through independent surplus or broker inventory.
Board-fit and package specifics
The surface-mount termination pads match the common 1206 solder-land pattern used across the industry for resistors, capacitors, and fuses — no custom footprint required. Supplied in Tape & Reel (TR) or Cut Tape (CT) for pick-and-place assembly.