750 mA fast-blow protection in a 0603 SMT footprint
The Littelfuse 0467.750NRHF is a Series 467 surface-mount fuse rated 750 mA with a fast-blow response time, designed for overcurrent protection on dense PCBs where space is tight. Rated 32 V AC and 32 V DC, it handles common low-voltage rail protection — think 24 VDC control circuits, sensor power feeds, or battery management lines. Breaking capacity is 50 A at rated voltage, meaning it can safely interrupt a fault current up to that level without rupturing — a solid margin for most secondary-side protection zones.
Selection and coordination parameters
Melting I²t is 0.0171 — this number is what you feed into the coordination study with the upstream breaker or PTC to ensure the fuse opens before the next device up the chain. Operating temperature spans -55°C to 90°C, so it holds calibration in outdoor telecom cabinets or unheated factory floors without derating concerns.