For replacement or design work, compare Mersen MI5FA40V0.63, a 0.63A 5×20mm high-speed fuse rated 400 VAC, including its rated current, voltage and mounting format for technical purchasing.
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Mersen MI5FA40V0.63 is a 0.63A 5×20mm high-speed fuse in the 5FA family, rated 400 VAC. For engineers matching protection to operating conditions, the model is intended for designers who need a verified series, rating and form factor rather than a generic fuse. Its ferrule / clip configuration supports power electronics, pcb protection. Use the exact part number when checking compatibility with installed fuse blocks or holders. The page is structured around the exact Mersen catalog number for easier procurement.
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