Ratings that define the fit
The 0467001.NRHF: Rated 1 A at 32 V AC/DC, this is a low-current, low-voltage fast-blow fuse intended for secondary-side protection on a 24 V or 12 V rail where the available fault current stays under 50 A. The 50 A breaking capacity at rated voltage means the fuse can safely interrupt a short-circuit fault up to that current without rupturing or sustaining an arc — adequate for most low-power DC supplies and battery-backed circuits, but not for high-energy mains-fed rails. Melting I²t of 0.0212 A²s is the energy required to open the element; this value governs coordination with downstream semiconductors and lets you verify that the fuse clears before a protected IC's surge rating is exceeded.
Housed in a standard 0603 (1608 metric) surface-mount package — 1.60 mm x 0.81 mm x 0.31 mm — the footprint matches the common chip resistor/pad layout for this case size, so no special land pattern is needed. Supplied on tape and reel (cut tape available), compatible with high-speed pick-and-place assembly.
Approvals and temperature envelope
Carries CSA and UL recognition — the two primary marks for North American overcurrent protection — confirming the fuse has passed the required interrupting and endurance tests per UL 248-14. Rated for an operating ambient of -55 °C to 90 °C, which covers most indoor and outdoor equipment enclosures; the 90 °C ceiling is the fuse-body temperature, not the PCB hotspot, so derate if the local ambient near the fuse exceeds that figure.
