750 mA fast-blow SMD fuse for tight overcurrent protection
The Littelfuse 0467.750NR is a 750 mA fast-blow fuse in the 467 series, housed in a 0603 (1608 metric) surface-mount package. It is rated for 32 V on both AC and DC circuits, with a breaking capacity of 50 A at rated voltage — meaning it can safely interrupt a short-circuit fault up to 50 A without rupturing the package or sustaining an arc. The fast-blow response time and a melting I²t of 0.0171 mean this fuse opens quickly on moderate overcurrents, making it suitable for protecting sensitive ICs, I/O lines, and small power rails where a time-delay fuse would let through too much energy before clearing.
What the ratings mean for your board
The 0603 footprint (1.60 mm x 0.81 mm) and 0.31 mm seated height fit standard pick-and-place assembly and reflow profiles. The -55°C to 90°C operating range covers most indoor and telecom-grade enclosures; derate the current above 90°C per the manufacturer's curve if the ambient near the fuse exceeds that. CSA and UL approval confirms the fuse meets North American safety standards for overcurrent protection — a requirement for equipment sold into UL 60950 or UL 62368 applications.