0678L Square Ceramic Medium Blow Fuse Bel Fuse 0678L Square Ceramic Fuses offer a 10A to 30A current rating, -55°C to +125°C operating temperature range, and 250VAC / 72VDC voltage rating. These medium blow, surface-mount fuses are AEC-Q200 and RoHS compliant. Bel Fuse 0678L fuses are ideal for use in voltage regulator modules, PC servers, office electronic equipment, industrial equipment, and medical equipment.