What the 3 A rating and 35 A breaking capacity mean for the board
The 0467003.NRHF is a Littelfuse 467 series fast-blow chip fuse rated 3 A continuous at 32 V AC or DC. The 35 A breaking capacity at rated voltage means it safely interrupts a fault current up to that level without rupturing the 0603 package — critical for secondary-side protection in a 24 V or 32 V rail where the upstream supply can deliver tens of amps.
CSA and UL approvals — what they certify
The fuse carries CSA and UL approval agency marks. UL 248-14 covers supplemental fuses for branch-circuit protection; CSA C22.2 No. 248.14 is the harmonized Canadian standard. Both certify the 35 A interrupting rating and the 32 V voltage rating for the intended overcurrent protection role.
0603 footprint and melting I²t for layout
The 0603 (1608 metric) package measures 1.60 mm x 0.81 mm x 0.31 mm — a standard chip fuse footprint that matches the pad layout of any generic 0603 fuse. The melting I²t of 0.2403 A²s and DC cold resistance of 0.017 Ω let you estimate the let-through energy for a given fault current; a downstream IC rated for a short-circuit withstand of, say, 1 A²s sees margin at this fuse's clearing characteristic.
Operating temperature range — industrial-grade deployment
Rated for -55°C to +90°C operating ambient — this covers most indoor and outdoor telecom, industrial control, and automotive auxiliary circuits. The 90°C ceiling is the fuse's own temperature rating; derate the 3 A continuous current if the ambient near the fuse exceeds 90°C, per the manufacturer's derating curve.