375 mA fast-blow fuse in a 0603 footprint
The Littelfuse 0467.375NRHF is a 375 mA fast-blow surface-mount fuse from the 467 series, rated for 32 V AC/DC and housed in a 0603 (1608 metric) package. Its 50 A breaking capacity at rated voltage means it can safely interrupt a short-circuit fault up to that current without rupturing or arcing across the 0603 body — a key spec for secondary-side protection in DC-DC converters or low-voltage control circuits where the available fault current is high.
What the ratings mean for your BOM
The 0.0035 melting I²t figure is the energy required to open the fuse element — at 375 mA nominal, a transient pulse above the current rating that delivers more than this energy will blow the fuse. This matters when the load has an inrush capacitor bank or a motor start-up surge; if the I²t of the inrush event exceeds 0.0035 A²s, the fuse opens prematurely.
Approved by CSA and UL — the fuse carries those marks, meaning it has passed the short-circuit and endurance tests required for North American panel and equipment certification. The 0603 footprint is standard; no special pad geometry beyond the recommended land pattern in the datasheet.